EN： The present perfect tense ('have been') is used with 'how long' to ask about the duration of an action or state that started in the past and continues to the present.
中文： 现在完成时（have been）与「how long」连用，用来询问从过去开始并持续到现在的动作或状态所持续的时间。
How long have you lived in this city?
你在这座城市住多久了？
EN： The preposition 'in' is used to indicate membership or participation in a group, club, or organization.
中文： 介词「in」在此处用于表示某人是某个团体、社团或组织的成员或参与者。
She has been in the school choir for two years.
她在学校合唱团待了两年。
EN： In Western schools, joining extracurricular activities like a 'music club' or 'band' is highly encouraged and plays a significant role in social life and college applications. Asking how long someone has been involved in a club is a common way to start a conversation and show interest in their hobbies.
中文： 在西方學校中，加入像「音樂社」或「樂團」這類的課外活動是非常受到鼓勵的，這在社交生活和大學申請中都扮演著重要角色。詢問某人在某個社團待了多久，是開啟對話並對他人愛好表示感興趣的常見方式。
EN： The Present Perfect Tense (have/has + past participle) is used here to describe an action or state that started in the past and continues up to the present. It is often paired with 'for' to indicate the duration of the action.
中文： 现在完成时（have/has + 过去分词）在这里用于描述一个从过去开始并持续到现在的动作或状态。它经常与“for”连用，以表示该动作持续的时间长度。
I have lived in this city for five years.
我已经在这个城市住了五年了。
EN： The preposition 'for' is used to indicate a duration of time (e.g., 'for two years', 'for a long time'), whereas 'since' is used to indicate a specific starting point in time (e.g., 'since 2010', 'since last summer').
中文： 介词「for」用于表示一段时间的长短（例如：「for two years」两年、「for a long time」好长一段时间），而「since」则用于表示过去某个特定的时间起点（例如：「since 2010」自2010年起、「since last summer」自去年夏天起）。
She has studied English for three months.
她已经学了三个月的英语了。
EN： In American schools, joining a 'band' (usually concert band, marching band, or jazz band) is a very common extracurricular activity. It is highly valued for building teamwork, discipline, and social connections, often lasting throughout a student's middle and high school years.
中文： 在美國學校中，加入「band」（通常指管樂團、行進樂隊或爵士樂團）是非常普遍的課外活動。這項活動因能培養團隊合作、紀律和社交關係而受到高度重視，學生通常會在整個國中和高中時期持續參與。
EN： The Present Perfect Tense (have/has + past participle) is used here with 'since' to describe a state that started in the past and continues up to the present. The verb 'know' is a stative verb, which means it is not typically used in the continuous form.
中文： 现在完成时（have/has + 过去分词）在此与「since（自从）」连用，用来描述一个从过去开始并持续到现在的状态。动词「know（认识/知道）」是一个状态动词，通常不使用进行时。
I have known Sarah since we were children.
我从小的时候就认识莎拉了。
EN： The preposition 'since' is used to indicate the starting point of an action or state that continues into the present. It is followed by a specific point in time (e.g., 'fourth grade', '2010', 'yesterday').
中文： 介词「since」用于指示持续到现在的动作或状态的「起点」。其后接一个特定的时间点（例如：「四年级」、「2010年」、「昨天」）。
He has lived in this city since last year.
他从去年就一直住在这座城市。
EN： In the United States and many other English-speaking countries, 'fourth grade' corresponds to students around 9 to 10 years old. Referring to school grades (e.g., 'since elementary school', 'since middle school') is a very common way for native speakers to establish the timeline of long-term friendships.
中文： 在美國及許多英語系國家，「fourth grade（四年級）」對應的學生年齡大約是 9 到 10 歲。母語人士非常習慣用學校年級或階段（例如：「自從小學起」、「自從國中起」）來建立長期友誼的時間線。
EN： The Present Perfect Tense (have/has + past participle) is used here to describe a state that started in the past and continues up to the present. The verb 'be' (past participle 'been') indicates a state of being.
中文： 现在完成时（have/has + 过去分词）在此处用于描述一个从过去开始并持续到现在的状态。动词「be」（过去分词为「been」）表示一种存在或身份状态。
They have been friends since childhood.
他们从小就是朋友。
EN： The preposition 'for' is used with a period of time (e.g., 'a long time', 'three years') to show the duration of an action or state in the present perfect tense.
中文： 介词「for」与一段时间（例如「a long time」很久、「three years」三年）连用，用来表示现在完成时中某个动作或状态持续的时间长短。
She has lived in Paris for five years.
她在巴黎已经住了五年。
EN： In Western high schools and colleges, joining a band or music club is a highly popular social activity. Referring to someone as a 'bandmate' often implies a deep bond forged through hours of shared practice and creative collaboration, representing a significant part of one's youth and social circle.
中文： 在西方的國高中與大學中，加入樂團或音樂社團是非常受歡迎的社交活動。稱呼某人為「bandmate」（樂團團員）通常隱含著一種深厚的羈絆，這種關係是透過無數小時的共同練習與音樂創作累積而來的，代表了青春與社交圈中非常重要的一部分。
EN： The Present Perfect Tense (have/has + past participle) is used here to describe an action that started in the past and continues up to the present. In this sentence, 'have studied' indicates that the action of learning drums began in the past and is still ongoing.
中文： 现在完成时（have/has + 过去分词）在此处用于描述一个从过去开始并持续到现在的动作。在本句中，「have studied」表示学习爵士鼓的动作始于过去，且目前仍在持续中。
I have lived in this city for five years.
我已经在这个城市住了五年了。
EN： The preposition 'since' is used to introduce a specific starting point in the past (e.g., 'last summer'). It is commonly paired with the Present Perfect Tense to show how long an action has been ongoing.
中文： 介词「since」用于引导过去的某个特定起点（例如「去年夏天」）。它通常与现在完成时搭配使用，以表示某个动作已经持续了多久。
She has worked at the school since 2018.
她从2018年起就在这所学校工作了。
EN： In Western schools, joining a music club or band (like learning the drums) is a very common extracurricular activity. Students often start learning instruments in middle school and continue through high school, fostering teamwork and discipline.
中文： 在西方學校中，加入音樂社團或樂團（例如學習爵士鼓）是非常普遍的課外活動。學生通常從國中開始學習樂器並持續到高中，這有助於培養團隊合作精神與自律能力。
EN： The Present Perfect Tense (has/have + past participle) is used here to describe a state that started in the past and continues up to the present moment.
中文： 现在完成时（has/have + 过去分词）在此处用于描述一个从过去开始并一直持续到现在的状态或动作。
She has lived in Taipei for five years.
她已经在台北住了五年。
EN： The preposition 'since' is used to indicate the starting point of an action or state that continues into the present, typically followed by a specific point in time (e.g., a year, a date, or a past event).
中文： 介词「since」用于指示持续到现在的动作或状态的「起点」，后面通常接一个特定的时间点（例如：年份、日期或过去发生的事件）。
I have been a vegetarian since 2018.
我自2018年以来就一直吃素。
EN： The Present Perfect Tense (has/have + past participle) is used here to describe an action that started in the past and continues up to the present. 'Has led' indicates that Emma started leading the choir in the past and still leads it now.
中文： 现在完成时（has/have + 过去分词）在此处用于描述一个从过去开始并持续到现在的动作。「Has led」表示艾玛在过去开始领导合唱团，且目前仍在领导。
He has played the piano since he was a child.
他从小就一直弹钢琴。
EN： The preposition 'for' is used with a period of time (e.g., three years, two hours) to show the duration of an action or state in the present perfect tense.
中文： 介词「for」与一段时间（例如：三年、两小时）连用，用来表示现在完成时中动作或状态持续的时间长短。
They have lived in this city for five years.
他们在这个城市已经住了五年了。
EN： In Western schools, extracurricular activities like the 'choir' or 'band' are highly valued. Students often stay in these clubs for multiple years, and student leadership roles (such as leading a section or the choir) are common and prestigious, fostering responsibility and teamwork.
中文： 在西方學校中，像「合唱團」或「樂團」這類的課外活動非常受到重視。學生通常會連續多年參與這些社團，而學生領導角色（例如領導某個聲部或整個合唱團）非常普遍且具有聲望，能培養責任感與團隊合作精神。
EN： The Present Perfect Tense (have/has + past participle) is used here with 'since' to describe an action or state that started in the past and continues up to the present. 'Since' is followed by a specific starting point in time (in this case, a subordinate clause 'I was five').
中文： 现在完成时（have/has + 过去分词）在此与「since」连用，用来描述一个从过去开始并持续到现在的动作或状态。「since」后面接一个特定的时间起点（在此处为从句「I was five」）。
I have lived in this city since I was a child.
我从小就一直住在这座城市。
EN： The verb 'love' can be followed by a gerund (verb-ing) to express a general preference or enjoyment of an activity.
中文： 动词「love」（喜爱）后面可以接动名词（动词-ing），用来表示对某项活动的普遍喜好或享受。
She loves playing the piano.
她很喜欢弹钢琴。
EN： The Present Perfect Tense (have/has + past participle) is used here to describe an action that started in the past and continues up to the present. It is often paired with 'since' to indicate the starting point of the action.
中文： 现在完成时（have/has + 过去分词）在此处用于描述一个从过去开始并持续到现在的动作。它经常与「since」（自从）搭配使用，以指出该动作的起点。
I have lived in this city since 2018.
自从2018年以来，我就一直住在这座城市。
EN： The preposition 'since' is used to refer back to a specific point in time when an action or state began. It is followed by a specific time (e.g., last year, 9 o'clock) or a clause in the simple past tense.
中文： 介词「since」用于指代某个动作或状态开始的特定过去时间点。其后接特定的时间（例如：去年、九点）或一般过去时的从句。
She has worked at the school since last month.
她从上个月起就在这所学校工作。
EN： Collecting vinyl records (old records) has seen a massive resurgence globally among music enthusiasts. It represents a nostalgic appreciation for physical media and analog sound quality in a digital streaming age.
中文： 在數位串流時代，收集黑膠唱片（舊唱片）在全世界的音樂愛好者中掀起了一股強大的復古風潮。這代表了人們對實體媒介和類比音質的一種懷舊與欣賞。
EN： The Present Perfect Tense (have/has + past participle) is used here to describe an action or state that started in the past and continues up to the present moment, emphasizing the cumulative experience or result within a time period that is not yet finished ('this term').
中文： 现在完成时（have/has + 过去分词）在此处用于描述从过去开始并持续到现在的动作或状态，强调在尚未结束的时间段（「这学期」）内积累的经验或结果。
I have not missed a single class this week.
这星期我一节课都没有缺过。
EN： The phrase 'not... a single' is used as an emphatic negative to mean 'not even one'. It emphasizes that absolutely nothing was missed, which is stronger than just saying 'I have not missed any practices'.
中文： 短语「not... a single」（连一个也没有）用作强调否定，意思是「甚至连一个都没有」。它强调绝对没有遗漏任何一次，比单纯说“I have not missed any practices”语气更强烈。
She did not say a single word during the meeting.
她在会议期间连一句话都没说。
EN： In school clubs and sports teams in English-speaking countries, attendance and dedication are highly valued. Saying you haven't missed a single practice demonstrates strong commitment, reliability, and team spirit, which are key cultural values in extracurricular activities.
中文： 在英語系國家的學校社團和運動隊伍中，出席率和奉獻精神受到高度重視。說自己「一次練習都沒有缺席過」展現了強烈的承諾、可靠性與團隊精神，這些都是課外活動中非常關鍵的文化價值觀。
EN： The Present Perfect Tense (have/has + past participle) is used here to describe a state that started in the past and continues to the present. 'Been' is the past participle of the verb 'be'.
中文： 现在完成时（have/has + 过去分词）在此处用于描述一个从过去开始并持续到现在的状态。「Been」是动词「be」的过去分词。
They have been friends since childhood.
他们自童年起就一直是朋友。
EN： The preposition 'for' is used with a period of time (e.g., 'for years', 'for two hours') to indicate the duration of an action or state in the present perfect tense.
中文： 介词「for」与一段时间（例如「多年」、「两小时」）连用，用来表示现在完成时中某个动作或状态持续的时间长短。
She has lived in Paris for five years.
她在巴黎已经住了五年。
EN： In English-speaking school cultures, being part of a 'team' or 'club' (like a band or sports team) builds strong social bonds. Expressing pride in the team's longevity ('for years') is a common way to show loyalty and deep friendship.
中文： 在英語系國家的學校文化中，成為「團隊」或「社團」（如樂團或運動隊伍）的一員能建立深厚的社交連結。表達對團隊長久合作（'for years'）的自豪，是展現忠誠度與深厚友誼的常見方式。
EN： The Present Perfect Tense (has/have + past participle) is used here to describe an action or state that started in the past and continues to the present. In this sentence, 'has brought' indicates that the unifying effect of music began in the past and is still true now.
中文： 现在完成时（has/have + 过去分词）在此处用于描述一个从过去开始并持续到现在的动作或状态。在本句中，「has brought」表示音乐带来的凝聚力从过去就开始了，且至今依然如此。
Our friendship has grown stronger over the years.
这些年来，我们的友谊变得更加深厚。
EN： The preposition 'since' is used to indicate the starting point of an action or state that continues to the present. It is commonly paired with the present perfect tense. 'Since the start' means from the very beginning.
中文： 介词「since」用于指出持续到现在的动作或状态的「起点」。它通常与现在完成时搭配使用。「Since the start」意为「从一开始/自始至终」。
They have lived in this city since 2015.
自 2015 年以来，他们一直住在这座城市。
EN： In Western school culture, participating in music clubs, bands, or choirs is a highly valued social and extracurricular activity. It is often seen as a powerful medium for building deep, lifelong friendships and fostering teamwork, which is reflected in the warm sentiment of this sentence.
中文： 在西方學校文化中，參與音樂社團、樂團或合唱團是非常受到重視的社交與課外活動。音樂常被視為建立深厚且終身友誼、培養團隊合作的強大媒介，這句話溫暖的筆調正反映了這種文化背景。
EN： The present perfect tense ('has existed') is used here to describe a state that started in the past and continues up to the present moment. It is formed with 'have/has' + past participle.
中文： 现在完成时（此处为 'has existed'）用于描述一个从过去开始并持续到现在的状态。其结构为「have/has + 过去分词」。
She has lived in this city for five years.
她在这座城市已经住了五年了。
EN： The preposition 'for' is used to indicate the duration of an action or state, followed by a period of time (e.g., 'for over ten years').
中文： 介词 'for' 用于表示动作或状态持续的时间长度，后面接一段时间（例如「超过十年」）。
They have studied English for three years.
他们已经学了三年英语了。
EN： The Present Perfect Tense (have/has + past participle) is used here with 'since' to describe an action or state that started in the past and continues up to the present moment.
中文： 现在完成时（have/has + 过去分词）在此与 'since' 连用，用来描述一个从过去某个时间点开始，并一直持续到现在的动作或状态。
I have lived in this city since 2015.
自从 2015 年以来，我一直住在这座城市。
EN： The preposition 'since' is used to indicate the starting point of an action or state that is still continuing. It is followed by a specific point in time (e.g., 'seventh grade', 'yesterday', '2010').
中文： 介词 'since' 用于表示一个持续至今的动作或状态的「起点」。其后接一个特定的时间点（例如：「七年级」、「昨天」、「2010年」）。
She has been a teacher since last year.
自从去年以来，她一直是一位老师。
EN： In the United States, 'seventh grade' typically corresponds to the first year of middle school or junior high school (around ages 12–13). Joining clubs or bands at this stage is a significant part of American school culture, fostering social connections and personal identity.
中文： 在美國，「seventh grade」（七年級）通常相當於國中一年級（約 12 至 13 歲）。在這個階段加入社團或樂團是美國學校文化中非常重要的一部分，有助於建立社交圈與個人認同感。
EN： The Present Perfect Tense (have/has + past participle) is used here with 'since' to describe an action that started in the past and continues up to the present. 'Since' introduces the specific starting point in time.
中文： 现在完成时（have/has + 过去分词）在此与 'since' 连用，用来描述一个从过去开始并持续到现在的动作。'since' 后面接动作开始的特定时间点。
I have lived in this city since I was a child.
我从小就住在这座城市。
EN： The conjunction 'since' can introduce a subordinate clause in the simple past tense (e.g., 'since I was very young') to indicate the starting point of the main clause's action.
中文： 连词 'since' 可以引导一个一般过去时的从句（例如 'since I was very young'），用来表示主句动作的起点时间。
She has played soccer since she entered high school.
她自从上高中以来就一直踢足球。
EN： The Present Perfect Tense (has/have + past participle) is used here to describe an action that started in the past and continues up to the present. The preposition 'for' is used to specify the duration of this action.
中文： 现在完成时（has/have + 过去分词）在此处用于描述一个从过去开始并持续到现在的动作。介词「for」用来指定该动作持续的时间长度。
He has lived in Taipei for ten years.
他已经住在台北十年了。
EN： The prepositional phrase 'in the choir' acts as an adverbial modifier of place, indicating where the singing action takes place. 'Choir' refers to an organized group of singers, typically performing in a church or public events.
中文： 介词短语「in the choir」（在合唱团里）作为地点状语，指出唱歌动作发生的地点。「Choir」指的是有组织的合唱团体，通常在教堂或公开活动中演出。
They practice singing in the choir every Wednesday.
他们每个星期三都在合唱团里练习唱歌。
EN： In Western schools, joining a 'choir' or 'band' is a very common and highly valued extracurricular activity. It helps students build teamwork, discipline, and social connections, often leading to long-term friendships as described in the context.
中文： 在西方學校中，加入「合唱團」（choir）或「樂團」（band）是非常普遍且受到高度重視的課外活動。這有助於學生培養團隊合作、紀律和社交關係，通常會像上下文中所描述的那樣，建立起長期的友誼。
EN： The Present Perfect Tense (have/has + past participle) is used here to describe an action that started in the past and continues up to the present. It is often paired with 'since' to indicate the starting point of the action.
中文： 现在完成时（have/has + 过去分词）在此用于描述一个从过去开始并持续到现在的动作。它经常与「since」（自从）连用，以指出该动作的起点。
Sarah has sung in the choir for three years.
莎拉已经在合唱团唱歌三年了。
EN： The preposition 'since' is used to refer to a specific point in time in the past (e.g., 'last autumn') from which an action has been ongoing.
中文： 介词「since」用于指代过去的某个特定时间点（例如「去年秋天」），表示某个动作自该时间点起一直持续至今。
I have wanted to join the band since spring.
我从春天以来就一直想加入乐队。
EN： In British English, 'autumn' is the standard word for the season between summer and winter, whereas American English speakers more commonly use 'fall'. Both are widely understood, but 'autumn' can sound slightly more formal in American contexts.
中文： 在英式英語中，「autumn」是夏冬之間季節的標準說法，而美式英語使用者則更常用「fall」。兩者皆能被廣泛理解，但在美式英語語境中，「autumn」聽起來會稍微正式一些。
EN： The Present Perfect Tense (has/have + past participle) is used here with 'since' to describe an action that started in the past and continues up to the present moment. 'Has guided' indicates that the guidance began in the past and is still ongoing.
中文： 现在完成时（has/have + 过去分词）在此与 'since' 连用，用来描述一个从过去开始并一直持续到现在的动作。「has guided」（一直指导）表示指导的行为从过去某个时间点开始，至今仍在进行。
Emma has led the choir for three years.
艾玛已经领导合唱团三年了。
EN： 'Since' can be used as a conjunction followed by a clause in the Simple Past Tense (e.g., 'it first began') to mark the specific starting point in time of an action that continues to the present.
中文： 'Since' 可作为连词，后接一般过去时的从句（例如 'it first began'），用来标记一个持续到现在的动作其具体的起点时间。
I have loved singing since I was five.
我从五岁起就一直热爱唱歌。
EN： The Present Perfect Tense (have/has + past participle) is used here to describe an action that has been completed or has occurred multiple times from a past point up to the present. It is often paired with 'since' to indicate the starting point of this period.
中文： 现在完成时（have/has + 过去分词）在此用于描述从过去某个时间点到现在为止，已经完成或发生过多次的动作。它经常与「since」连用，以指出该段时间的起点。
We have visited that museum three times since we moved to this city.
自从我们搬到这个城市以来，我们已经参观过那间博物馆三次了。
EN： The conjunction 'since' introduces a subordinate clause in the Simple Past Tense ('joined') to mark the specific point in time when the action of the main clause (in the Present Perfect Tense) began.
中文： 连词「since」引导一个使用一般过去时（'joined'）的从句，用来标记主句（使用现在完成时）动作开始的特定时间点。
I have lived in Taipei since I graduated from college.
自从我大学毕业以来，我就一直住在台北。
EN： The Present Perfect Tense (have + past participle) is used here with 'since' to describe an action or state that started in the past and continues up to the present moment.
中文： 现在完成时（have + 过去分词）在此与 'since' 连用，用来描述一个从过去开始并一直持续到现在的动作或状态。
I have lived in this city since 2015.
从2015年以来，我就一直住在这座城市。
EN： The phrase 'since day one' is an informal idiomatic expression meaning 'from the very beginning' of a project, relationship, or period of time.
中文： 短语 'since day one' 是一个非正式的习语，意思是「从一开始」「从第一天起」。
She has been supportive of my dream since day one.
从第一天开始，她就一直支持我的梦想。
EN： In English-speaking school cultures, joining clubs or bands is a primary way students build tight-knit social circles. The phrase 'since day one' highlights the deep loyalty and bond formed from the very start of their shared journey.
中文： 在英語系國家的學校文化中，加入社團或樂團是學生建立緊密社交圈的主要方式。'since day one'（從第一天開始）這個片語強調了他們從共同旅程一開始就建立的深厚友誼與情感連結。
EN： The Present Perfect Tense (has/have + past participle) is used here to describe a state that started in the past and continues to the present moment. In this sentence, 'has been' indicates that music became important in the past and remains important now.
中文： 现在完成时（has/have + 过去分词）在此处用于描述一个从过去开始并持续到现在的状态。在本句中，「has been」表示音乐在过去变得重要，且至今依然重要。
She has been a teacher since 2015.
自2015年以来，她一直是一位老师。
EN： The preposition 'for' is used with a duration of time (e.g., 'for years', 'for three days') to show how long a situation has lasted.
中文： 介词「for」与一段时间（例如「for years」多年来、「for three days」三天）连用，用来表示某个状况持续了多久的时间。
They have lived in this city for ten years.
他们在这个城市已经住了十年了。
EN： In English-speaking cultures, expressing that a hobby or passion (like music or sports) is 'a big part of my life' is a common way to show deep personal commitment and identity, often implying that it has shaped who they are.
中文： 在英語系國家中，表達某種興趣或熱情（如音樂或運動）是「a big part of my life」（我生命中很大的一部分），是一種常見用來展現個人深切投入與認同感的方式，通常暗示這項事物形塑了他們的個性或生活方式。
EN： The Present Perfect Tense (have/has + past participle) is used here with 'how long' to ask about the duration of an action that started in the past and continues into the present.
中文： 现在完成时（have/has + 过去分词）在此与「how long」连用，用来询问某个从过去开始并持续到现在的动作所持续的时间。
How long have you lived in this city?
你在这座城市住多久了？
EN： The definite article 'the' is standard in English before names of musical instruments when we talk about playing them (e.g., play the violin, play the piano).
中文： 在英文中，当我们谈论「演奏」某种乐器时，乐器名称前通常会加上定冠词「the」（例如：play the violin 拉小提琴、play the piano 弹钢琴）。
She has played the flute since she was ten.
她从十岁起就开始吹长笛了。
EN： In English-speaking schools, joining a music club or band (like orchestra or marching band) is a very common extracurricular activity. Students often start learning instruments like the violin or flute in elementary or middle school, and conversations about how long they have played are common icebreakers among student musicians.
中文： 在英語系國家的學校中，加入音樂社團或樂團（如管弦樂團或行進樂隊）是非常普遍的課外活動。學生通常在國小或國中就開始學習小提琴或長笛等樂器，因此對於學生音樂家來說，詢問彼此學習樂器多久了是相當常見的社交話題。
EN： The Present Perfect Tense (have/has + past participle) is used here to describe an action that started in the past and continues up to the present moment. It is often paired with 'for' to indicate the duration of the action.
中文： 现在完成时（have/has + 过去分词）在此用于描述一个从过去开始并持续到现在的动作。它经常与「for」连用，以表示该动作持续的时间长短。
I have lived in this city for five years.
我已经在这个城市住了五年了。
EN： The preposition 'for' is used to indicate a period of time (duration), whereas 'about' is used as an adverb meaning 'approximately' to modify the number.
中文： 介词「for」用于表示一段时间（持续时间），而「about」在此作为副词，意思是「大约」，用来修饰后面的数量。
We waited for about two hours.
我们大约等了两个小时。
EN： The Present Perfect Tense (have/has + past participle) is used here to describe a state or action that started in the past and continues up to the present. It is often paired with 'since' to indicate the starting point of the action.
中文： 现在完成时（have/has + 过去分词）在此处用于描述一个从过去开始并持续到现在的状态或动作。它经常与「since」（自从）搭配使用，以指出该动作的起点。
I have lived in this city since 2018.
自从 2018 年以来，我一直住在这座城市。
EN： The verb 'want' is a stative verb and is followed by an infinitive (to + verb) to express a desire to perform an action.
中文： 动词「want」（想要）是一个状态动词，后面接不定式（to + 动词）来表示想要做某事的意愿。
She wants to learn how to play the violin.
她想要学习如何拉小提琴。
EN： Present Perfect Tense (Yes/No Question): Used to ask about an action that started in the past and continues to the present. It is formed by placing 'Have/Has' before the subject, followed by the past participle (V3) of the main verb.
中文： 现在完成时（Yes/No 疑问句）：用于询问从过去某个时间点开始，一直持续到现在的动作或状态。其句型结构为将助动词「Have/Has」置于主语之前，后面接主动词的过去分词（V3）。
Have you lived in this city since 2018?
你从2018年就一直住在这个城市吗？
EN： Since + Point in Time: The preposition 'since' is used with the present perfect tense to specify the starting point of an action or state that continues to the present moment.
中文： Since + 特定时间点：介词「since」常与现在完成时连用，用来明确指出某个持续到现在的动作或状态的「起点」。
Emma has led the choir since last autumn.
艾玛从去年秋天就一直领导着合唱团。
EN： In Western schools, joining a 'choir' (or chorus) is a very common extracurricular activity. It is often considered a prestigious and tight-knit community, similar to sports teams, where students build long-term friendships through regular rehearsals and seasonal concerts.
中文： 在西方學校中，加入「合唱團」(choir) 是一項非常普遍且受歡迎的課外活動。它通常被視為一個凝聚力極強的社群（類似運動代表隊），學生們透過定期的排練和季節性音樂會，建立起深厚的長期友誼。
EN： The Present Perfect Tense (have/has + past participle) is used here with 'since' to describe an action that started in the past and continues up to the present. 'Since' is followed by a specific point in time (March).
中文： 现在完成时（have/has + 过去分词）在此与「since」连用，用来描述一个从过去开始并持续到现在的动作。「since」后面接一个特定的时间点（三月）。
I have lived in this city since 2018.
从2018年以来，我就一直住在这座城市。
EN： The verb 'practice' is a gerund-only verb, meaning it must be followed by a gerund (V-ing form) rather than an infinitive (to-V) when expressing the activity being practiced.
中文： 动词「practice」（练习）是个只能接动名词的动词，这意味着在表达所练习的活动时，后面必须接动名词（V-ing 形式），而非不定式（to-V）。
She practices playing the piano every day.
她每天练习弹钢琴。
EN： The Present Perfect Tense (have/has + past participle) is used here in its negative form ('have not touched') to describe an action (or lack thereof) that started in the past and continues up to the present moment.
中文： 现在完成时（have/has + 过去分词）在此处以否定形式（have not touched）呈现，用来描述一个从过去某个时间点开始，一直持续到现在都没有发生的动作或状态。
I have not seen him since Tuesday.
从周二以来，我一直没有见过他。
EN： 'Since' is used as a preposition followed by a specific point in time in the past ('the exam') to indicate the starting point of an action or state that continues to the present.
中文： 「since」在此作为介词，后面接一个过去的特定时间点（the exam，意指考试那时），用来表示某个持续到现在的动作或状态的起点。
She has been busy since last week.
从上个星期以来，她一直很忙。
EN： The Present Perfect Tense (has/have + past participle) is used here to describe an action that started in the past and continues up to the present. 'Has worked' indicates that the teacher began working in the past and still works here now.
中文： 现在完成时（has/have + 过去分词）在此处用于描述一个从过去开始并持续到现在的动作。「has worked」表示老师在过去开始工作，且目前仍在这里工作。
Emma has lived in this city for five years.
艾玛在这座城市已经住了五年了。
EN： The preposition 'since' is used with a specific point in time in the past (e.g., 2015, last year, Monday) to show when an action or state began.
中文： 介词「since」与过去的特定时间点（例如：2015年、去年、星期一）连用，用来表示某个动作或状态开始的时间点。
I have played the piano since I was very young.
我从小就弹钢琴。
EN： The Present Perfect Tense (have/has + past participle) is used here to describe an action that started in the past and continues up to the present moment. It is often paired with 'for' followed by a duration of time.
中文： 现在完成时（have/has + 过去分词）在此处用于描述一个从过去开始并持续到现在的动作。通常会与介词「for」加上一段持续的时间连用。
She has lived in Taipei for five years.
她已经在台北住了五年。
EN： The preposition 'for' is used to indicate the purpose or destination of an action (e.g., 'saved money for a new drum') and also to indicate a duration of time (e.g., 'for months').
中文： 介词「for」在此句中有两种用法：第一种表示动作的目的或对象（例如「为了新鼓存钱」），第二种表示时间的持续长短（例如「持续好几个月」）。
They bought some flowers for their mother.
他们买了一些花要送给他们的母亲。
EN： The Present Perfect Tense (have/has + past participle) is used here to describe an action that started in the past and continues up to the present. It is often paired with 'since' to indicate the specific starting point in time.
中文： 现在完成时（have/has + 过去分词）在此处用于描述一个从过去开始并持续到现在的动作。它经常与「since」（自从）连用，以指出该动作开始的特定时间点。
I have lived in this city since 2015.
从2015年以来，我就一直住在这座城市。
EN： The preposition 'for' is used after the verb 'wait' to introduce the object of anticipation (the thing or person being waited for).
中文： 介词「for」接在动词「wait」后面，用来引出期待的对象（正在等待的人或事物）。
They are waiting for the bus.
他们正在等公交车。
EN： The Present Perfect Tense (have/has + past participle) is used here to describe an action or state that started in the past and continues up to the present. It is often paired with 'for' followed by a duration of time.
中文： 现在完成时（have/has + 过去分词）在此处用于描述一个从过去开始并持续到现在的动作或状态。它经常与「for」后面接一段时间的结构连用。
We have lived in this city for ten years.
我们在这个城市已经住了十年了。
EN： The phrasal verb 'look forward to' means to feel excited about something that is going to happen. Note that 'to' is a preposition, so it must be followed by a noun, pronoun, or gerund (V-ing).
中文： 短语动词「look forward to」表示对即将发生的事情感到兴奋或期待。请注意，这里的「to」是介词，因此后面必须接名词、代词或动名词（V-ing）。
She is looking forward to meeting the new teacher.
她正期待着与新老师见面。
重要单词附有 IPA 发音、定义、例句和互动式测验。
在本文中： 乐队成员，指在同一支乐队或乐团中一起演奏音乐的伙伴。
在本文中： 存在、成立，指某个组织或事物从过去某个时间点开始一直存在至今。
在本文中： 合唱团，指一群一起唱歌的人，通常在校园、教堂或音乐会中演出。
在本文中： 黑胶唱片，指一种用来播放音乐的圆形塑料盘片。
在本文中： 学期，指学校教学年度中的一个学期阶段。
在本文中： 指导、引导，指教师或导师带领并给予方向或建议。
在本文中： 奖项、奖品，指在比赛或竞争中获得的荣誉或奖励。
在本文中： 小提琴，一种四弦的木制拉弦乐器。
片语包含类型标示、双语定义、用法说明和例句。
To feel pleased and excited about something that is going to happen.
期待、盼望
From the very beginning of a period of time or an activity.
从第一天开始、从一开始
An important or significant element of something.
……的重要部分、很大的一部分