EN： The Present Perfect Tense (have/has + past participle) is used here to ask about an action that happened at an unspecified time in the past, with relevance to the present. In questions, 'yet' is commonly placed at the end of the sentence to mean 'up to this moment'.
中文： 现在完成时（have/has + 过去分词）在此用于询问过去某个不确定时间点发生、且与现在相关的动作。在疑问句中，常将 'yet' 放在句尾，表示「到目前为止（是否已经...）」。
Have you finished your homework yet?
你写完作业了吗？
EN： The possessive determiner 'your' is used to show ownership or responsibility. In this context, 'your part' refers to the specific portion of the project assigned to the listener.
中文： 所有格限定词 'your' 用于表示所有权或责任。在此语境中，'your part' 指的是分配给听者的那一部分项目工作。
Please write your name on the paper.
请在纸上写下你的名字。
EN： The Present Perfect Tense (have/has + past participle) is used here to describe an action that has been completed in the past but has a strong connection to the present (the report is now finished and ready).
中文： 现在完成时（have/has + 过去分词）在此处用于描述在过去已经完成，但与现在有强烈关联的动作（报告现在已经写好并准备妥当）。
I have already finished my homework.
我已经做完作业了。
EN： The adverb 'already' is commonly used with the present perfect tense to emphasize that something has happened sooner than expected. It usually goes between the auxiliary verb 'have/has' and the main verb (past participle).
中文： 副词「already」（已经）常用于现在完成时，以强调某事比预期得更早发生。它通常置于助动词「have/has」和主要动词（过去分词）之间。
She has already left the office.
她已经离开办公室了。
EN： The present perfect tense (have/has + past participle) is used here in its negative form ('haven't' / 'have not') to describe an action that has not occurred up to the present moment. It is often accompanied by 'yet' in negative sentences.
中文： 现在完成时（have/has + 过去分词）在此处以否定形式（haven't / have not）呈现，用来描述直到目前为止尚未发生的动作。在否定句中，通常与「yet」（还没）连用。
They haven't finished the homework yet.
他们还没有完成作业。
EN： The adverb 'yet' is commonly used at the end of negative sentences or questions in the present perfect tense to indicate that something expected has not happened but is anticipated to happen in the future.
中文： 副词「yet」常用于现在完成时的否定句或疑问句句尾，表示预期会发生但至今尚未发生的事情，意为「还（没）」。
She hasn't arrived at the station yet.
她还没有到达车站。
EN： The Present Perfect Tense (have/has + past participle) is used here with the adverb 'just' to describe an action that was completed a very short time ago.
中文： 现在完成时（have/has + 过去分词）在此与副词「just（刚刚）」连用，用来描述在极短的时间之前刚刚完成的动作。
She has just finished her homework.
她刚刚才写完作业。
EN： The quantifier 'all' is used before a determiner (like 'the') and a plural countable noun ('photos') to refer to the entire amount or number of the items.
中文： 限定词「all（所有的）」用于限定词（如 'the'）和复数可数名词（'photos'）之前，用来指代该物品的全部数量。
I have invited all the students to the party.
我已经邀请了所有的学生来参加派对。
EN： The Present Perfect Tense (have/has + past participle) is used with 'ever' to ask about life experiences up to the present moment. 'Ever' means 'at any time in your life'.
中文： 现在完成时（have/has + 过去分词）与 'ever'（曾经）连用，用来询问截至目前为止的人生经验。'Ever' 表示「在你有生之年的任何时候」。
Have you ever visited London?
你曾去过伦敦吗？
EN： The word 'before' is often added to the end of present perfect questions to emphasize whether the action has occurred at any point prior to the current conversation.
中文： 副词 'before'（以前）常放在现在完成时问句的句尾，用来强调在目前对话之前的任何时间点是否曾发生过该动作。
I have never seen this movie before.
我以前从未看过这部电影。
EN： In Western schools, a 'school fair' (sometimes called a school fete or carnival) is a very common community event. It is often organized by students, teachers, and parents to raise funds for the school through games, food stalls, and activities.
中文： 在西方學校中，「學校園遊會」（school fair，有時也稱為 school fete 或 carnival）是非常常見的社區活動。這類活動通常由學生、教師和家長共同籌辦，透過遊戲、攤位和各種活動為學校籌募資金。
EN： The Present Perfect Tense (have/has + past participle) is used here with 'never' to describe a life experience up to the present moment. 'Never' is placed between the auxiliary verb 'have' and the past participle 'done'.
中文： 现在完成时（have/has + 过去分词）在此与 'never'（从未）连用，用来描述直到目前为止的人生经验。'Never' 位于助动词 'have' 与过去分词 'done' 之间。
I have never visited Paris before.
我以前从未去过巴黎。
EN： The adverb 'before' is commonly used at the end of present perfect sentences to emphasize that the action has not occurred at any point in the past leading up to now.
中文： 副词 'before'（以前）常用于现在完成时的句尾，以强调在过去到现在为止的任何时间点，该动作都未曾发生过。
She has never seen this movie before.
她以前从未看过这部电影。
EN： The Present Perfect Tense (have + past participle) is used here with the adverb 'already' to describe an action that was completed in the past, emphasizing its relevance to the present situation. In this context, 'one' is a pronoun referring to 'a school fair'.
中文： 现在完成时（have + 过去分词）在此与副词「already」（已经）连用，用来描述过去已完成的动作，并强调该动作与现在情况的关联。在此句中，代词「one」指的是「学校园游会」。
I have already finished my homework, so I can play now.
我已经写完作业了，所以现在可以玩了。
EN： The imperative phrase 'Don't worry' is used to reassure the listener. It is followed by a comma and a main clause that provides the reason why they should not worry.
中文： 祈使句短语「Don't worry」（别担心）用于安抚听者。其后接逗号，再接一个主句以提供不必担心的理由。
Don't worry, we still have plenty of time.
别担心，我们还有充裕的时间。
EN： Present Perfect Tense in Questions: The present perfect tense is formed using 'have/has' + past participle. In questions, the auxiliary verb 'has' or 'have' is placed before the subject (e.g., 'Has Mr. Wang checked...'). This tense is used to talk about actions that happened at an unspecified time in the past and have relevance to the present.
中文： 现在完成时的疑问句：现在完成时由「have/has + 过去分词」构成。在疑问句中，助动词「has」或「have」要置于主语之前（例如：'Has Mr. Wang checked...'）。此时态用于讨论过去发生但具体时间不详，且与现在有密切关联的动作。
Has she finished her homework?
她做完作业了吗？
EN： The Adverb 'yet' in Questions: 'Yet' is commonly used in negative sentences and questions. In questions, it means 'up to this time' or 'so far' and is typically placed at the very end of the sentence to ask if an expected action has occurred.
中文： 副词「yet」在疑问句中的用法：「yet」常用于否定句和疑问句中。在疑问句中，它表示「到目前为止」或「迄今」，通常放在句尾，用来询问预期中的事情是否已经发生。
Have they arrived at the station yet?
他们已经到达车站了吗？
EN： The Present Perfect Tense (have/has + past participle) is used here to describe an action that happened at an unspecified time in the past, but has a direct result or relevance to the present. 'Has' is used because the subject 'he' is third-person singular.
中文： 现在完成时（have/has + 过去分词）在此用于描述在过去某个不确定时间点发生，但对现在有直接影响或关联的动作。因为主语「he」（他）是第三人称单数，所以使用助动词「has」。
She has already finished her homework.
她已经完成了她的作业。
EN： The adverb 'already' is commonly used in present perfect sentences to emphasize that something has happened sooner than expected. It is typically placed between the auxiliary verb 'has/have' and the main verb (past participle).
中文： 副词「already」（已经）常用于现在完成时的句子中，用以强调某事比预期更早发生。它通常置于助动词「has/have」和主要动词（过去分词）之间。
They have already left the office.
他们已经离开办公室了。
EN： The Present Perfect Tense (have/has + past participle) is used here to describe an action that was completed in the recent past, where the result of the action (having the materials now) is important in the present.
中文： 现在完成时（have/has + 过去分词）在此处用于描述在不久前完成的动作，且该动作的结果（现在拥有这些材料）对现在而言非常重要。
I have finished my homework, so I can play now.
我已经写完作业了，所以现在可以玩了。
EN： The coordinating conjunction 'and' is used to connect two nouns ('the paper' and 'the glue') that function together as the compound direct object of the verb.
中文： 并列连词「and」用于连接两个名词（「the paper」和「the glue」），这两个名词共同作为动词的复合直接宾语。
She bought the bread and the milk.
她买了面包和牛奶。
EN： The Present Perfect Tense (have/has + past participle) is used here to describe an action that has been completed in the very recent past, emphasizing the current state of completion.
中文： 现在完成时（have/has + 过去分词）在此处用于描述在刚过去的最近时间内已完成的动作，强调目前「已完成」的状态。
We have already cleaned the classroom.
我们已经打扫完教室了。
EN： The adverb 'almost' is used to indicate that an action is very close to being completed. In the present perfect tense, 'almost' is typically placed between the auxiliary verb 'have/has' and the main verb (past participle).
中文： 副词「almost」（几乎）用于表示动作非常接近完成。在现在完成时中，「almost」通常置于助动词「have/has」与主要动词（过去分词）之间。
She has almost finished her homework.
她几乎快要写完作业了。
EN： The Present Perfect Tense (have/has + past participle) is used here to describe an action that has been completed in the recent past, emphasizing the current result or state of achievement.
中文： 现在完成时（have/has + 过去分词）在此处用于描述在不久前已完成的动作，强调目前的成果或成就状态。
We have finished the project ahead of schedule.
我们已经提前完成了这个项目。
EN： The collocation 'do a job' is used with adjectives like 'wonderful' to describe the quality of performance. 'Do' is the standard verb used with 'job' or 'work' in this context.
中文： 动词搭配「do a job」常与「wonderful」等形容词连用，用来描述工作表现的质量。在此语境中，「do」是与「job」或「work」搭配的标准动词。
She did an amazing job on the presentation.
她在简报上表现得非常出色。
EN： In English-speaking workplaces and schools, expressing gratitude and acknowledging collective effort with phrases like 'We have done a wonderful job together' is highly valued. It fosters team spirit and positive reinforcement.
中文： 在英語系國家的職場與學校文化中，非常重視表達感謝與肯定團隊的共同努力。使用「We have done a wonderful job together」這類句子能有效激勵團隊士氣並建立積極的合作氛圍。
EN： The Present Perfect Tense (has/have + past participle) is used here to describe an action that started in the past and has a strong connection or result in the present. In this case, 'has worked' shows the ongoing effort leading up to the event.
中文： 现在完成时（has/have + 过去分词）在此处用于描述一个始于过去且与现在有强烈关联或影响的动作。在这个句子中，'has worked'（已经努力）展现了为活动所付出的持续努力，并延伸至今。
Our team has practiced daily to win the upcoming match.
我们队伍每天都在练习，为了赢得即将到来的比赛。
EN： The infinitive phrase 'to get ready for' functions as an adverbial modifier of purpose, explaining why the class has worked hard. 'Get ready for' is a common phrasal verb meaning to prepare for something.
中文： 不定式短语 'to get ready for'（为了...做好准备）在此作为目的状语，解释了班级如此努力的原因。'Get ready for' 是一个常见的短语，意思是准备某事。
She woke up early to get ready for her job interview.
她很早就起床，为了她的工作面试做准备。
EN： A 'school fair' (or school carnival) is a very common community and social event in Western schools, especially in the US and UK. It often involves booths with games, food, and performances run by students and parents to raise funds for the school or simply to build community spirit.
中文： 「學校園遊會」（school fair 或 school carnival）是西方學校（特別是美英兩國）非常常見的社區與社交活動。這類活動通常包含由學生和家長經營的遊戲攤位、食物攤位和表演，旨在為學校籌款或單純凝聚社區向心力。
EN： Present Perfect Tense (have/has + past participle) is used here to describe an action that has been completed in the past, but has a strong connection or relevance to the present moment (preparing for the school fair).
中文： 现在完成时（have/has + 过去分词）在此处用于描述在过去已经完成，但与现在时刻（为学校园游会做准备）有强烈关联或影响的动作。
We have already prepared the ingredients for the dinner.
我们已经准备好晚餐的食材了。
EN： The Oxford Comma (serial comma) is the comma placed immediately before the coordinating conjunction (usually 'and' or 'or') in a list of three or more items. In 'games, food, and a small show', it helps clarify that these are three distinct, individual items.
中文： 牛津逗号（序列逗号）是指在三个或更多项目的列表中，放在并列连词（通常是 'and' 或 'or'）之前的逗号。在 'games, food, and a small show' 中，它有助于明确区分这是三个独立的项目。
She bought apples, bananas, and oranges.
她买了苹果、香蕉和橙子。
EN： The Present Perfect Tense (have/has + past participle) is used here with the adverb 'already' to emphasize that an action has been completed prior to the present moment, often sooner than expected.
中文： 现在完成时（have/has + 过去分词）在此与副词「already（已经）」连用，用来强调某个动作在现在之前的某个时间点已经完成，通常比预期的还要早。
She has already sent the email to the client.
她已经把电子邮件寄给客户了。
EN： The preposition 'for' is used to indicate purpose or destination, showing that the posters were created specifically to decorate or be used at the booth.
中文： 介词「for」在此用于表示目的或对象，说明这些海报是专门为了我们的摊位而制作或准备的。
We bought some flowers for the classroom.
我们买了一些花要装饰教室。
EN： In Western school culture, events like 'school fairs' or 'carnivals' are highly collaborative. Students often work in groups to design their own 'booths' (which can feature games, food, or crafts) to raise funds or build community spirit. Preparing posters and decorations is a classic team-building activity for students.
中文： 在西方校園文化中，「學校園遊會（school fair）」或「嘉年華（carnival）」是非常強調團隊合作的活動。學生通常會分組設計自己的「攤位（booth）」（可能包含遊戲、食物或手作），以此募集資金或凝聚社群向心力。共同製作海報和裝飾攤位是學生時期非常經典的團隊合作體驗。
EN： The Present Perfect Tense (have/has + past participle) is used here to describe an action that has been completed in the recent past, with a strong connection or result in the present (i.e., they now have the prizes ready for the event).
中文： 现在完成时（have/has + 过去分词）在此处用于描述在不久前已完成的动作，且该动作与现在有强烈的关联或影响（即他们现在已经有奖品了）。
We have already prepared the food for the guests.
我们已经为客人准备好了食物。
EN： The preposition 'for' is used to indicate the intended recipient or beneficiary of an action or object. In this sentence, 'for the winners' shows who will receive the prizes.
中文： 介词「for」用于表示某个动作或物品的预期接受者或受益者。在本句中，「for the winners」指明了谁将获得这些奖品。
She bought a beautiful gift for her mother.
她为她的母亲买了一份精美的礼物。
EN： In school events like fairs or festivals in Western cultures, it is very common for students to collect donations or small prizes from local businesses, parents, or teachers to encourage participation in games. This fosters a sense of community and collaboration.
中文： 在西方學校的園遊會或節慶活動中，學生們非常流行向當地商家、家長或老師募集小獎品或捐贈物，以鼓勵大家參與遊戲。這有助於培養社區意識與合作精神。
EN： The Present Perfect Tense (have/has + past participle) combined with 'never' is used to describe life experiences up to the present moment, indicating that an action or state has not occurred at any point in the past.
中文： 现在完成时（have/has + 过去分词）与副词「never」（从未）连用，用来描述到目前为止的生命经历，表示过去任何时刻都未曾发生过某动作或状态。
I have never traveled to Europe before.
我以前从未去过欧洲旅行。
EN： The structure 'so + adjective + about + noun' is used to express a high degree of emotion directed toward a specific event, object, or situation. 'Excited' is a past participle adjective describing a person's feeling.
中文： 「so + 形容词 + about + 名词」的结构用于表达对特定事件、事物或情况的高度情绪反应。「excited」是过去分词作形容词，用来形容人的感受（感到兴奋的）。
She is so passionate about her new job.
她对她的新工作感到如此热情。
EN： Present Perfect Tense (has/have + past participle) is used here to describe actions that happened in the past but have a strong relevance or result in the present. In this sentence, 'has' is shared by both past participles 'checked' and 'given' (parallel structure).
中文： 现在完成时（has/have + 过去分词）在此处用于描述过去发生但与现在有强烈关联或影响的动作。在此句子中，助动词「has」由两个过去分词「checked」和「given」共同使用（形成平行结构）。
She has finished her homework and cleaned her room.
她已经完成了作业并打扫了房间。
EN： The verb 'give' is a ditransitive verb, which takes an indirect object (us) followed by a direct object (good advice). Note that 'advice' is an uncountable noun and cannot be used with 'an' or in a plural form.
中文： 动词「give」（给予）是一个双宾语动词，后面接间接宾语（us，我们）和直接宾语（good advice，好的建议）。请注意，「advice」是不可数名词，不能与不定冠词「an」连用，也没有复数形式。
EN： The Present Perfect Tense (have/has + past participle) is used here to describe an action that has occurred multiple times up to the present moment. The focus is on the experience or the accumulated result of the action rather than a specific past time.
中文： 现在完成时（have/has + 过去分词）在此处用于描述截至目前为止已发生多次的动作。其重点在于该动作的经历或累积结果，而非过去某个具体的时间点。
We have visited that museum three times.
我们已经去过那间博物馆三次了。
EN： The phrase 'many times' acts as an adverbial modifier of frequency, indicating how often the action has been repeated. It is commonly placed at the end of a sentence in the present perfect tense.
中文： 短语 'many times'（许多次）作为频率副词修饰语，表示该动作重复的次数。在现在完成时的句子中，它通常放在句尾。
She has called him many times today.
她今天已经打给他很多次了。
EN： The present perfect tense (have/has + past participle) is used here with 'yet' in a negative sentence to describe an action that has not happened up to the present moment, but is expected to happen in the future.
中文： 现在完成时（have/has + 过去分词）在此与 'yet' 连用于否定句中，用来描述一个直到目前尚未发生，但预期在未来会发生的动作。
They have not finished the project yet.
他们还没有完成这个项目。
EN： The coordinating conjunction 'but' is used to connect two independent clauses, showing contrast. The second clause 'we will soon' uses the modal verb 'will' to express a future prediction or intention, with the main verb 'sell them' omitted to avoid repetition.
中文： 并列连词 'but' 用于连接两个独立分句以表示对比。第二个分句 'we will soon' 使用助动词 'will' 来表达未来的预测或意图，并省略了主要动词 'sell them' 以避免重复。
I don't play tennis now, but I will soon.
我现在不打网球，但我很快就会开始打了。
EN： Noun Clause as Object: The verb 'believe' is followed by a noun clause (that-clause) acting as its direct object. The conjunction 'that' is omitted here, which is very common in informal and spoken English.
中文： 名词性从句作宾语：动词「believe」（相信）后面接一个名词性从句（that 从句）作为其直接宾语。在此句中，连接词「that」被省略了，这在口语和非正式英语中非常常见。
I believe we can win the game.
我相信我们能赢得这场比赛。
EN： Present Perfect Tense for Completion: 'has prepared' uses the present perfect tense (has/have + past participle) to show an action that started in the past and has a strong connection or result in the present.
中文： 现在完成时表示完成：动词「has prepared」使用现在完成时（has/have + 过去分词），用以表示一个在过去发生、且与现在有强烈关联或影响的动作。
Our team has designed a beautiful poster.
我们团队已经设计了一张漂亮的海报。
EN： In American schools, a 'school fair' or 'school carnival' is a highly anticipated community event. Students, teachers, and parents work together to set up booths with games, food, and activities to raise funds for the school and build community spirit. Expressing pride in one's class's contribution is a common way to foster team spirit.
中文： 在美國學校中，「school fair」（學校園遊會/市集）是一項備受期待的社區活動。學生、老師和家長會共同合作，設立遊戲、食物和活動攤位，為學校籌款並建立社區凝聚力。對自己班級的貢獻表達自豪，是培養團隊精神的常見方式。
EN： The Present Perfect Tense (have/has + past participle) is used here to ask about an action that may or may not have happened in the period leading up to the present. The adverb 'yet' is commonly used in questions and negative sentences in this tense to mean 'up to this time'.
中文： 现在完成时（have/has + 过去分词）在此用于询问某个动作在目前为止的时间内是否已经发生。副词「yet」常用于现在完成时的疑问句和否定句中，表示「到目前为止」或「已经」。
Have you finished your homework yet?
你已经写完作业了吗？
EN： Direct Address (Vocative). Placing a name at the beginning of a sentence, followed by a comma, is used to get that specific person's attention before asking a question or making a statement.
中文： 直接称呼（呼格）。将名字放在句首并加上逗号，用于在提问或陈述之前吸引该特定对象的注意。
John, can you help me with this box?
约翰，你可以帮我搬这个箱子吗？
EN： In school events like fairs or festivals, 'booths' (temporary structures for selling food, playing games, or displaying information) are traditionally decorated by students to attract visitors. Asking teammates about their progress using 'yet' is a common, polite way to check on tasks without sounding overly demanding.
中文： 在學校園遊會或節慶等活動中，「booths（攤位，指販售食物、玩遊戲或展示資訊的臨時搭建攤位）」傳統上會由學生親自裝飾以吸引人潮。使用「yet」來詢問隊友的進度，是一種常見且有禮貌的確認任務方式，聽起來不會過於強求。
EN： The Present Perfect Tense (have/has + past participle) is used here with the adverb 'just' to describe an action that was completed a very short time ago.
中文： 现在完成时（have/has + 过去分词）在此处与副词「just（刚刚）」连用，用来描述在极短的时间前刚刚完成的动作。
I have just finished my homework.
我刚刚写完作业了。
EN： The phrasal verb 'put up' means to attach something to a wall or post, or to place something in a high position. It is a separable phrasal verb.
中文： 短语动词「put up」意思是把某物挂在墙上、柱子上，或者放在较高的位置。这是一个可拆分的短语动词。
They put up a new poster on the wall.
他们在墙上贴了一张新海报。
EN： In Western school culture, preparing for a school fair or booth decoration is a highly collaborative and hands-on activity. Balloons are a classic, budget-friendly decoration used to create a festive and welcoming atmosphere.
中文： 在西方學校文化中，準備學校園遊會或攤位佈置是一項高度講求合作與動手實作的活動。氣球是營造節慶與歡迎氣氛最經典且經濟實惠的裝飾物。
EN： The Present Perfect Tense (have/has + past participle) is used here with 'ever' to ask about life experiences up to the present moment. 'Ever' means 'at any time in your life' and is commonly used in questions.
中文： 现在完成时（have/has + 过去分词）在此与 'ever'（曾经）连用，用来询问截至目前为止的「人生经历」。'Ever' 意为「在你一生中的任何时候」，常用于疑问句中。
Have you ever eaten raw fish?
你曾经吃过生鱼片吗？
EN： The preposition 'at' is used to indicate a specific location, event, or social gathering, such as 'at a fair', 'at a party', or 'at school'.
中文： 介词 'at' 用于指示特定的地点、活动或社交聚会，例如 'at a fair'（在集市）、'at a party'（在聚会上）或 'at school'（在学校）。
She bought a beautiful painting at a local fair.
她在当地的集市买了一幅美丽的画作。
EN： In Western schools and communities, 'fairs' (such as school fairs, science fairs, or craft fairs) are very common events. They serve as social gatherings and fundraising opportunities where students and community members set up booths to sell food, handmade crafts, or run games.
中文： 在西方學校與社區中，「市集」（如學校園遊會、科學展覽會或手工藝市集）是非常常見的活動。這些活動通常作為社交聚會和籌款機會，學生和社區成員會擺設攤位販售食物、手工藝品或經營遊戲攤位。
EN： The Present Perfect Tense (have/has + past participle) is used here to describe a life experience that occurred at an unspecified time in the past. The focus is on the experience itself rather than when it happened.
中文： 现在完成时（have/has + 过去分词）在此处用于描述过去某个未明确时间点发生的个人经历。其重点在于「经历」本身，而非发生的具体时间。
I have visited Paris twice.
我曾去过巴黎两次。
EN： The adverb 'once' is used as a frequency adverb meaning 'one time' to specify how many times an action has been performed in the past.
中文： 副词「once」在此作为频率副词，意思是「一次」，用来明确指出过去某个动作曾被执行过多少次。
She has met the president once.
她曾与总统会面过一次。
EN： The present perfect tense in the negative form ('have/has not + past participle') is used to describe actions that have not occurred up to the present moment. The adverb 'yet' is commonly placed at the end of negative sentences to emphasize that the action is expected to happen in the future.
中文： 现在完成时的否定形式（have/has not + 过去分词）用于描述直到目前尚未发生的动作。副词「yet」（还、尚）通常放在否定句的句尾，用以强调该动作在未来预期会发生。
I haven't finished my homework yet.
我还没有写完我的作业。
EN： The short question 'Have you?' is an ellipsis (omission of words) used in conversation to avoid repetition. It stands for 'Have you tried them?' and is used to ask the interlocutor about their own experience regarding the same action.
中文： 简短问句「Have you?」是一种省略结构，在日常对话中用来避免重复。它代表「Have you tried them?」（你试过了吗？），用于询问对方关于同一件事情的自身经验或状况。
I have already seen that movie. Have you?
我已经看过那部电影了。你呢（你看了吗）？
EN： In English-speaking school events like fairs or carnivals, asking 'Have you?' or 'Have you tried...?' is a very common, friendly way to break the ice and share experiences about different booths and activities.
中文： 在英語國家的學校活動（如園遊會或嘉年華）中，使用「Have you?」或「Have you tried...?」是一種非常常見且友善的破冰方式，用來互相詢問並分享對各個攤位與活動的體驗。
EN： The Present Perfect Tense (have/has + past participle) is used here to express an action that has been completed in the past, with relevance to the present. The adverb 'already' is commonly used in affirmative sentences to emphasize that something has happened sooner than expected.
中文： 现在完成时（have/has + 过去分词）在此处用于表示过去已经完成且与现在相关的动作。副词「already」（已经）常用于肯定句中，以强调某事比预期更早发生。
She has already finished her homework.
她已经写完作业了。
EN： 'Ring toss' is a classic carnival or school fair game where players try to throw plastic or wooden rings onto pegs or bottles to win prizes. It is a staple of American school fundraising events.
中文： 「Ring toss」（套圈圈）是西方園遊會或學校義賣園遊會中非常經典的遊戲，玩家嘗試將塑膠或木製圓環投擲到木釘或瓶子上以贏得獎品。這是美國學校籌款活動中不可或缺的經典攤位。
EN： The Present Perfect Tense (have/has + past participle) is used here to describe an action that happened in the recent past, where the result of that action is important in the present (i.e., the prize box is now here).
中文： 现在完成时（have/has + 过去分词）在此处用于描述在不久前发生的动作，且该动作的结果对现在很重要（即：奖品箱现在已经在这里了）。
She has already finished her homework.
她已经写完作业了。
EN： The verb 'bring' is an irregular verb. Its past participle form is 'brought' (bring - brought - brought). It means to carry or conduct something to a place.
中文： 动词「bring」（带来）是不规则动词。其过去分词形式为「brought」（动词三态为 bring - brought - brought），表示将某物携带或带到某个地方。
They have brought some snacks for the party.
他们已经为派对带了一些点心。
EN： In school events or fairs, a 'prize box' is a common element where students can choose a small reward after winning games. It serves as a great motivator for student participation.
中文： 在學校活動或園遊會中，「獎品箱」（prize box）是一個很常見的元素，學生在遊戲獲勝後可以從中挑選小獎品。這對於激勵學生參與活動起到了很大的作用。
EN： The Present Perfect Tense (has/have + past participle) is used here to ask about an action that may have occurred at an unspecified time in the past, with relevance to the present. Since 'anyone' is an indefinite singular pronoun, the singular auxiliary verb 'has' is used.
中文： 现在完成时（has/have + 过去分词）在此用于询问过去某个不确定时间点是否已发生某动作，且该动作与现在相关。因为不定代词'anyone'（任何人）视为单数，所以助动词使用单数的'has'。
Has anyone seen my keys?
有人看到我的钥匙了吗？
EN： The adverb 'yet' is commonly used in negative sentences and questions in the present perfect tense. In questions, it means 'up to this time' or 'by now' and is typically placed at the end of the sentence.
中文： 副词'yet'（已经/还）常用于现在完成时的否定句和疑问句中。在疑问句中，它表示「到目前为止」或「现在」，通常放在句尾。
Have you finished your homework yet?
你作业写完了吗？
EN： The Present Perfect Tense (have/has + past participle) is used here with the adverb 'already' to emphasize that an action has been completed prior to the present moment, often sooner than expected.
中文： 现在完成时（have/has + 过去分词）在此与副词「already」（已经）连用，用以强调某个动作在现在之前的某个时间点已经完成，通常比预期的还要早。
She has already finished her homework.
她已经写完她的作业了。
EN： The pronoun 'all' can be used as a post-determiner or pronoun modifier directly after object pronouns (like 'them', 'us', 'you') to mean 'every one of them'.
中文： 代词「all」可以直接放在宾格代词（如「them」、「us」、「you」）之后作为修饰，表示「他们全部」或「大家」。
I invited them all to my party.
我邀请了所有他们来参加我的派对。
EN： The Present Perfect Tense (have + past participle) is used here to show that an action has been completed in the very recent past, and the result is relevant to the present moment.
中文： 现在完成时（have + 过去分词）在此处用于表示在不久前的过去已经完成的动作，且其结果与现在这一刻密切相关（即现在所有事情都准备好了）。
We have finished our homework, so we can play video games now.
我们已经写完作业了，所以我们现在可以玩电子游戏了。
EN： 'Let's' is a contraction of 'let us', used to make a suggestion or propose an action to be done together with the listener.
中文： 「Let's」是「let us」的缩写，用于提出建议或提议与听者一起进行某个动作。
Let's go to the park this afternoon.
我们今天下午去公园吧。
重要单词附有 IPA 发音、定义、例句和互动式测验。
在本文中： 批准、认可（计划、建议等）
在本文中： （集市、展览会等处的）摊位、棚子
在本文中： 收集、募捐（物品或资金）
在本文中： 装饰、装扮
在本文中： （学校、社区等举办的）义卖会、游园会或集市
在本文中： 海报
在本文中： 练习、排练
在本文中： 准备、筹备
片语包含类型标示、双语定义、用法说明和例句。
To attach something to a wall or post so that it can be seen.
张贴、挂起（海报、气球等装饰物）
A game in which rings are thrown to land over a peg or object.
套圈游戏
To prepare oneself or something for an event or activity.
做好准备