EN： The auxiliary verb 'did' is used to form questions in the simple past tense. When 'did' is used, the main verb (in this case, 'see') must revert to its base form.
中文： 助动词 did 用于构成一般过去时的疑问句。当句子中使用了 did 时，主要动词（在此句中为 see）必须恢复为动词原形。
Did you finish your homework yesterday?
你昨天完成作业了吗？
EN： The word 'downtown' can function as an adverb meaning 'in or to the central part of a city'. It does not require a preposition like 'in' or 'at' before it.
中文： 单词 downtown 可以用作副词，意思是「在市中心」或「去市中心」。在它前面不需要加 in 或 at 等介词。
We went shopping downtown last weekend.
我们上周末去市中心购物。
EN： In many Western cities, 'downtown' refers to the commercial, cultural, and often historical active center of a city where street performers (buskers) commonly gather to entertain pedestrians for tips.
中文： 在許多西方城市中，「downtown」（市區/市中心）指的是城市中商業、文化最發達且歷史悠久的中心地帶。街頭藝人（常被稱為 buskers）通常會聚集在這些人潮眾多的地方表演，並賺取小費。
EN： The verb 'see' is a sensory verb (verb of perception). When followed by an object and a bare infinitive (verb in its base form without 'to'), it indicates that the subject witnessed the entire action from start to finish.
中文： 动词 see（看见）属于感官动词。当后面接宾语和动词原形（不带 to 的动词）时，表示主语亲眼目睹了该动作从开始到结束的完整过程。
I saw her cross the street safely.
我看到她安全地过马路。
EN： The idiom 'at once' means simultaneously or at the same time.
中文： 短语 at once 在此处意为「同时」，相当于 simultaneously 或 at the same time。
Don't all speak at once.
大家不要同时说话。
EN： Street performing (busking) is a vibrant part of urban culture in many Western countries. Juggling multiple objects while interacting with the crowd is a classic street art form that relies heavily on immediate audience reaction and tips.
中文： 街頭藝人（busking）表演在許多西方國家的城市文化中佔有重要地位。同時拋接多個物品並與觀眾互動，是一種非常經典的街頭藝術形式，這類表演非常依賴觀眾的即時反應與打賞支持。
EN： Verbs of perception (such as 'hear', 'see', 'watch') can be followed by an object and a bare infinitive (verb without 'to') to indicate that the subject perceived the entire action from start to finish.
中文： 感官动词（如 hear、see、watch）后面可以接受词和动词原形（不带 to 的动词），用来表示主语完整经历或看见/听见了该动作的整个过程。
I saw her cross the street safely.
我看着她安全地过马路。
EN： The word 'too' is an adverb meaning 'also' or 'in addition'. It is typically placed at the very end of an affirmative sentence, preceded by a comma in formal writing, though the comma is often omitted in casual contexts.
中文： 副词「too」表示「也」或「此外」。它通常放在肯定句的句尾，在正式写作中前面通常加上逗号，但在口语或非正式情境中逗号常被省略。
She wants to join the music club too.
她也想加入音乐社团。
EN： Sensory Verbs (watch/see/hear) + Object + Bare Infinitive (V): This structure is used to indicate that the subject witnessed the entire action from start to finish. In this sentence, 'watched' (sensory verb) is followed by the object 'him' and the bare infinitive 'dance'.
中文： 感官动词（watch/see/hear）+ 宾语 + 动词原形（V）：此结构用于表示主语完整目睹或听到了某个动作的整个过程。在本句中，感官动词 'watched' 后面接了宾语 'him' 与动词原形 'dance'。
I heard her sing the entire song.
我听见她唱完了整首歌。
EN： Subordinating Conjunction 'while': 'While' is used to connect two actions happening at the same time, often emphasizing the duration of the background action.
中文： 从属连词 'while'（当……的时候）：'while' 用于连接两个同时发生的动作，通常用来强调背景动作的持续时间。
She read a book while he cooked dinner.
他在做晚饭时，她正在读书。
EN： The verb 'see' is a sensory verb (verb of perception). When followed by an object and a bare infinitive (verb in its base form without 'to'), it indicates that the subject witnessed the entire action from start to finish.
中文： 动词「see」（看见）属于感官动词。当后面接宾语（受词）和动词原形（不带 to 的不定式）时，表示主语完整地目睹了该动作从始至终的过程。
I saw him cross the street safely.
我看到他安全地过马路。
EN： The preposition 'onto' is used to show movement toward a position on the surface of something.
中文： 介词「onto」（到……之上）用于表示朝向某物体表面移动的动作。
The cat jumped onto the kitchen counter.
猫跳上了厨房台面。
EN： The verb 'notice' is a sensory verb (verb of perception). When followed by an object and a bare infinitive (verb in its base form without 'to'), it indicates that the subject observed the entire completed action from start to finish.
中文： 动词 notice 属于感官动词。当后面接宾语和动词原形（不带 to 的动词）时，表示主语完整地观察到了该动作从开始到结束发生的全过程。
I noticed him lock the door before he left.
我注意到他在离开前锁了门。
EN： The phrasal verb 'smile at' is used to direct a smile toward a specific person or thing. 'At' is the preposition indicating the target of the action.
中文： 短语动词 smile at 用于表示朝特定的人或物微笑。介词 at 用来指出微笑的对象（目标）。
The teacher smiled at the students as they walked in.
当学生们走进来时，老师对着他们微笑。
EN： The verb 'feel' is a sensory verb (verb of perception). When followed by an object, it can take a bare infinitive (verb in its base form without 'to') to emphasize the entire action from start to finish, or a present participle (-ing) to emphasize an action in progress.
中文： 动词 feel（感觉）属于感官动词。当后面接宾语时，可以使用动词原形（不带 to 的不定式）来强调完整过程，或使用现在分词（-ing）来强调正在进行的动作。在本句中，'get excited' 使用动词原形 get，表示完整感受到人群变得兴奋的过程。
I felt the ground shake for a few seconds.
我感觉到地面震动了几秒钟。
EN： The structure 'get + adjective' is used to describe a change in state, meaning 'to become' or 'to start to be' something.
中文： get + 形容词 的结构用来描述状态的变化，意思是「变得」或「开始呈现某种状态」。这里的 'excited' 是过去分词作形容词用，表示「兴奋的」。
The children got tired after playing in the park.
孩子们在公园玩耍后变得疲倦了。
EN： Verbs of perception (such as 'watch', 'see', 'hear') can be followed by an object and a present participle (V-ing) to emphasize that the action was in progress or ongoing at the moment of observation.
中文： 感官动词（如 'watch'、'see'、'hear'）后面可以接受词和现在分词（V-ing），用以强调在观察的那个瞬间，该动作正在进行中。
I heard Emma singing in the kitchen.
我听到艾玛在厨房里唱歌。
EN： The preposition 'with' is used to indicate accompaniment, showing who or what is participating in the action alongside the subject.
中文： 介词 'with' 用于表示伴随，显示谁或什么事物与主语一起参与该动作。
He played with his friends in the park.
他和朋友们在公园里玩耍。
EN： Street performances (busking) are a vibrant part of urban culture in many English-speaking countries. It is common and encouraged for audience members, especially children, to interact or dance along with the performers, creating a warm community atmosphere.
中文： 街頭藝人表演（街頭藝術）在許多英語系國家的都市文化中佔有重要地位。觀眾（特別是孩童）與表演者互動或一起跳舞是非常常見且受到鼓勵的，這能營造出溫馨的社區氛圍。
EN： Verbs of perception (such as 'hear', 'see', 'watch') can be followed by an object and a present participle (verb-ing) to emphasize that the action was in progress or ongoing at the moment it was perceived.
中文： 感官动词（如 hear、see、watch）后面可以接受词和现在分词（动词-ing），用以强调感官察觉到该动作正在进行中。
I saw the children playing in the park.
我看到孩子们在公园里玩耍。
EN： Adverbs of manner (like 'loudly') are used to describe how an action is performed. They typically modify verbs and are often placed after the verb or the object.
中文： 方式副词（如 loudly）用来修饰动词，描述动作进行的方式，通常放在动词或受词之后。
She spoke softly to the baby.
她温柔地对婴儿说话。
EN： The superlative adjective 'the most amazing' is used to compare three or more things, indicating that the subject has the highest degree of that quality. 'Amazing' is a multi-syllable adjective, so we use 'the most' before it instead of adding '-est'.
中文： 最高级形容词「the most amazing」用于三者或三者以上的比较，表示主语具有该特质的最强程度。由于「amazing」是多音节形容词，因此在前面加上「the most」，而不是在词尾加上「-est」。
This is the most beautiful painting in the gallery.
这是画廊里最美丽的画作。
EN： The word 'ever' is used after a superlative adjective to mean 'at any time in history' or 'of all time', emphasizing the extreme nature of the statement.
中文： 副词「ever」常置于最高级形容词之后，表示「有史以来」或「在任何时候」，用以加强语气，强调该声明的极致程度。
That was the best meal ever!
那真是有史以来最棒的一餐！
EN： In English-speaking cultures, expressing enthusiasm with superlatives like 'the best ever' or 'the most amazing' is very common and natural when reviewing or discussing entertainment, food, or experiences. It shows genuine appreciation and engagement.
中文： 在英語系國家中，當評論或討論娛樂、美食或體驗時，非常流行且自然地使用像「the best ever」（有史以來最棒）或「the most amazing」（最驚人的）這類的最高級來表達熱情。這展現了真誠的讚賞與投入。
EN： The verb 'see' is a sensory verb (verb of perception). When followed by an object and a present participle (V-ing), it emphasizes that the subject witnessed an action that was ongoing or in progress at that moment.
中文： 动词「see」（看见）属于感官动词。当后面接宾语（受词）和现在分词（V-ing）时，用来强调主语亲眼目睹了该动作正在进行的瞬间或过程。
I saw Emma playing the piano in the music room.
我看到艾玛正在音乐教室弹钢琴。
EN： The conjunction 'and' connects two parallel structures. In this sentence, it connects two present participles, 'taking' and '(taking) videos', where the second 'taking' is omitted to avoid repetition.
中文： 并列连词「and」用来连接两个平行对称的结构。在本句中，它连接了两个现在分词「taking」与「(taking) videos」，其中第二个动词「taking」被省略以避免重复。
EN： The use of the adverb 'really' to emphasize a verb or an adjective. In this sentence, 'really' is placed before the main verb 'have' to strongly emphasize the statement.
中文： 副词「really」（真的）用来修饰并加强动词或形容词的语气。在本句中，「really」置于主要动词「have」之前，用以强烈强调后续所描述的事实。
She really loves playing the piano.
她真的非常喜欢弹钢琴。
EN： Plural nouns used for generalization. When talking about a category of people or things in general, English often uses plural nouns without an article (e.g., 'Street performers' instead of 'A street performer').
中文： 复数名词用于泛指。当我们泛指某一类人或事物时，英文通常使用复数名词且不加冠词（例如使用「Street performers」，而非「A street performer」）。
Cats are very independent animals.
猫是高度独立的动物。
EN： Street performing, also known as 'busking', is a vibrant part of urban culture in many English-speaking countries. Cities like London, New York, and Melbourne have designated spots and licensing systems for street performers, who are highly respected for bringing art and entertainment to public spaces.
中文： 街頭表演（英文也常稱為 busking）在許多英語系國家的都市文化中佔有重要地位。像倫敦、紐約和墨爾本等城市，都為街頭藝人設有專門的表演區域與許可證制度。街頭藝人因將藝術與娛樂帶入公共空間而受到大眾的高度尊重。
EN： The Simple Past Tense is used to describe completed actions that happened at a specific time in the past (e.g., 'Last Saturday'). The verb 'saw' is the irregular past tense form of 'see'.
中文： 一般过去时（Simple Past Tense）用于描述在过去特定时间（例如「上周六」）已经完成的动作。动词「saw」是「see」的不规则过去式变化。
Last night, I saw a beautiful shooting star in the sky.
昨天晚上，我看到天空有一颗美丽的流星。
EN： Adjective order and noun modification: 'amazing' (opinion adjective) and 'street' (noun adjunct acting as a classifier) both modify the head noun 'performer' to create a detailed noun phrase.
中文： 形容词顺序与名词修饰：意见形容词「amazing」（令人惊叹的）与作修饰语的名词「street」（街头的）共同修饰中心名词「performer」（艺人），形成一个语义丰富的名词短语。
We met a talented local artist at the gallery.
我们在画廊遇到了一位有才华的当地艺术家。
EN： In many Western cities, street performers (also known as buskers) are a vibrant part of urban culture. They perform in public squares, parks, and transit stations, often relying on voluntary tips from passersby. Seeing them is a common and celebrated weekend experience.
中文： 在許多西方城市中，街頭藝人（又稱 buskers）是城市文化中非常有活力的一部分。他們在公共廣場、公園和地鐵站表演，通常依靠路人的自願打賞。在週末街頭欣賞他們的表演是當地非常普遍且受歡迎的體驗。
EN： The sensory verb 'hear' (past tense 'heard') is followed by an object and a present participle (verb-ing) to describe an action that is in progress at the moment of perception.
中文： 感官动词「hear」（过去式为 heard）后面接宾语（受词）和现在分词（V-ing），用来描述感觉察觉到该动作当时正在进行中。
I heard someone knocking on the door.
我听到有人正在敲门。
EN： The subordinating conjunction 'when' introduces an adverbial clause of time, indicating that the action in the main clause happened at or immediately after the action in the dependent clause.
中文： 从属连词「when」引导时间状语从句，表示主句的动作发生在从句动作的同时或之后。
When the bell rang, the students left the classroom.
当钟声响起时，学生们离开了教室。
EN： In many Western cities, 'the square' (or town square) is a central open area where community life happens, often featuring street performers, local markets, and live music, making it a lively hub of social activity.
中文： 在許多西方城市中，「the square」（廣場或城鎮廣場）是社區生活的中心開放區域，經常有街頭藝人表演、當地市集和現場音樂，是個充滿活力的社交活動樞紐。
EN： The verb 'watch' is a sensory verb (verb of perception). When followed by an object, we use a bare infinitive (verb in its base form without 'to') to emphasize that the subject witnessed the entire action from start to finish.
中文： 动词 watch（观看）属于感官动词。当后面接宾语时，我们使用动词原形（不带 to 的不定式），用以强调主语完整地目睹了该动作从开始到结束的过程。
We watched the plane land safely.
我们看着飞机安全降落。
EN： The coordinating conjunction 'and' connects two parallel bare infinitive phrases ('juggle...' and 'ride...') which both function as object complements describing what 'the man' was doing.
中文： 并列连词 and 连接两个平行的动词原形短语（'juggle...' 与 'ride...'），两者皆作宾语补足语，用来描述「那个人」当时正在进行的动作。
She helped him wash the dishes and clean the kitchen.
她帮他洗碗并清理厨房。
EN： Street performing, or 'busking', is a vibrant part of urban culture in many Western cities. Performers often combine multiple skills, such as juggling while riding a unicycle or tall bike, to capture the attention of busy passersby in public squares.
中文： 街頭藝人表演（英文俗稱 busking）在許多西方城市是街頭文化中充滿活力的一部分。表演者經常結合多種技能（例如一邊騎獨輪車或高單車，一邊丟球雜耍），以吸引公共廣場上匆忙路過的行人的注意。
EN： Compound Verbs with 'and': When a single subject performs two actions in sequence or simultaneously, we can connect the two verbs using the coordinating conjunction 'and'. Both verbs must agree in tense (in this case, past tense: 'stood' and 'clapped').
中文： 使用 'and' 连接的复合动词：当单一主语先后或同时进行两个动作时，我们可以使用并列连词 'and' 来连接这两个动词。这两个动词的时态必须保持一致（在此句中皆为过去式：'stood' 与 'clapped'）。
She walked into the room and sat down.
她走进房间并坐了下来。
EN： Adverbs of Manner: Adverbs like 'loudly' describe how an action is performed. They are typically formed by adding '-ly' to an adjective ('loud' -> 'loudly') and usually follow the verb they modify.
中文： 方式副词：像 'loudly'（大声地）这样的方式副词用来修饰动作是如何进行的。它们通常是由形容词词尾加上 '-ly' 形成（例如 'loud' 变成 'loudly'），并且通常放在所修饰的动词后面。
The children played happily in the garden.
孩子们在花园里快乐地玩耍。
EN： The verb 'see' is a sensory verb (verb of perception). When followed by an object and a bare infinitive (verb without 'to'), it emphasizes that the subject witnessed the entire action from start to finish.
中文： 感官动词（如 see, hear, watch）后面接受词和动词原形（不带 to 的不定式）时，强调主语亲眼目睹或听到了整个动作发生的全过程。
I saw him cross the street safely.
我看到他安全地过马路。
EN： The phrasal verb 'walk up to' means to approach someone or something by walking, often in a direct or confident manner.
中文： 短语动词「walk up to」表示「走向、走近」某人或某物，通常指直接或自信地走过去。
She walked up to the teacher and asked a question.
她走向老师并问了一个问题。
EN： The verb 'watch' is a sensory verb (verb of perception). When followed by an object and a bare infinitive (verb in its base form without 'to'), it indicates that the subject witnessed the entire action from start to finish.
中文： 动词「watch」（观看）属于感官动词。当后面接宾语（受词）和动词原形（不带 to 的不定式）时，表示主语完整地目睹了该动作从开始到结束的过程。
We watched the plane land safely.
我们看着飞机安全降落。
EN： The verb 'give' is a ditransitive verb, which takes two objects: an indirect object (the recipient, 'her') and a direct object (the thing given, 'a balloon flower').
中文： 动词「give」（给予）是双宾语动词（授与动词），后面接两个宾语：间接宾语（接受者「her」）与直接宾语（给予的物品「a balloon flower」）。
He gave me a beautiful book.
他给了我一本书。
EN： In Western street performances, it is very common for performers to interact directly with the audience, especially children, by making balloon animals or flowers to create a warm, community-friendly atmosphere.
中文： 在西方的街頭表演文化中，藝人與觀眾（特別是兒童）進行直接互動是非常常見的。透過製作氣球動物或氣球花送給小朋友，能營造出溫馨且具社區凝聚力的友好氣氛。
EN： The verb 'feel' is a sensory verb (verb of perception). When followed by an object and a bare infinitive (verb in its base form without 'to'), it indicates that the subject perceived the entire action from start to finish.
中文： 动词「feel」（感觉）属于感官动词。当后面接宾语（受词）和动词原形（不带 to 的不定式）时，表示主语完整感受到了该动作发生的全过程。
I felt the ground shake for a few seconds.
我感觉到地面震动了几秒钟。
EN： The preposition 'at' is used to point out a specific point in time, such as a moment, a holiday, or a precise clock time.
中文： 介词「at」用于指出特定的时间点，例如某个时刻、节日或具体的时间点。
She woke up at that exact moment.
她就在那一刻醒了过来。
EN： In English-speaking cultures, street performances (busking) are highly valued as a form of community art. Expressing shared emotional moments, like 'everyone smiling together,' highlights the sense of community and connection that public art fosters.
中文： 在英語系國家中，街頭藝人表演（busking）被視為一種極具價值的社區藝術形式。描述「每個人一起微笑」這種共享的情感時刻，強調了公共藝術所培養的社區凝聚力與人際連結。
EN： Verbs of perception (like 'hear' and 'see') can be followed by an object and a present participle (V-ing) to emphasize an action that is ongoing or in progress at the moment of perception.
中文： 感官动词（如 hear、see）后面可接受词和现在分词（V-ing），用以强调在感知的当下，该动作正在进行中。
I saw Emma drawing a picture in her notebook.
我看到艾玛正在笔记本上画画。
EN： The coordinating conjunction 'and' is used to connect two independent clauses with parallel structures (Subject + Verb + Object + V-ing) to describe two simultaneous events.
中文： 并列连词「and」在此用于连接两个结构对称的独立分句（主语 + 动词 + 宾语 + 现在分词），用以描述两个同时发生的事件。
He played the guitar and she sang a song.
他弹吉他，而她唱歌。
EN： The causative verb 'make' can be followed by an object and an adjective (or adjective phrase) as an object complement (make + object + adjective). This structure means 'to cause someone or something to be in a particular state'.
中文： 使役动词「make」后面可以接宾语和形容词（或形容词短语）作为宾语补足语，结构为「make + 宾语 + 形容词」。这个结构表示「使某人或某事处于某种状态」。
The warm weather makes me sleepy.
温暖的天气让我昏昏欲睡。
EN： The word 'lively' is an adjective meaning full of life and energy, even though it ends in '-ly' (which is typically associated with adverbs). Here, it is coordinated with the adjective 'fun' to describe the city.
中文： 单词 lively 是一个形容词，意思是充满活力和生气的，虽然它以 -ly 结尾（通常与副词相关）。在这里，它与形容词 fun 并列，用来修饰城市。
EN： Street performance, or busking, is a vibrant part of urban culture in many English-speaking countries. Cities often have designated areas (like plazas or subway stations) where licensed performers entertain the public, contributing to the local community's lively atmosphere.
中文： 街頭表演（或稱街頭藝人表演）在許多英語系國家的城市文化中佔有重要地位。城市通常會設有指定區域（如廣場或地鐵站），讓獲得許可的藝人進行表演，這為當地社區增添了活潑的氛圍。
EN： The future simple tense with 'will' is used here to express a firm promise or determination about the future. The adverb 'never' (meaning 'not at any time') is placed between the auxiliary verb 'will' and the main verb 'forget' to emphasize the negation.
中文： 此处使用助动词 will 引导的一般将来时，用来表达对未来的坚定承诺或决心。副词 never（意为「绝不、从未」）置于助动词 will 与主要动词 forget 之间，用以加强否定语气。
I will never forget your kindness.
我永远不会忘记你的好意。
EN： The demonstrative adjective 'that' is used to point to a specific, singular noun ('afternoon') that is distant in time (in this case, a past event being recalled). It contrasts with 'this', which refers to something close in time or space.
中文： 指示形容词 that（那、那个）用于修饰特定且单数的名词（此处为 afternoon），表示在时间上较远的事物（在此指过去回忆中的事件）。这与表示空间或时间上较近的 this 形成对比。
I still remember that wonderful trip to Paris.
我仍然记得那次美好的巴黎之旅。
EN： Wh-questions in the simple past tense use the auxiliary verb 'did' followed by the subject and the base form of the main verb. The formula is: Wh-word + did + subject + base verb?
中文： 一般过去时的特殊疑问句使用助动词「did」，后面接主语和动词原形。其结构为：疑问词 + did + 主语 + 动词原形？
What did you buy at the market?
你在市场买了什么？
EN： The preposition 'at' is used to indicate a specific event, activity, or location where something takes place, such as 'at the show' or 'at the party'.
中文： 介词「at」用来指示某事发生的特定活动、事件或地点，例如「at the show（在表演中）」或「at the party（在聚会上）」。
We met some friends at the concert.
我们在音乐会上遇到了一些朋友。
EN： In Western culture, street performances (busking) are highly popular and interactive. It is common for performers to ask for volunteers from the crowd, especially children, to create a warm and engaging atmosphere. Asking friends about their experience at such shows is a standard casual conversation starter.
中文： 在西方文化中，街頭藝人表演（busking）非常受歡迎且具互動性。表演者經常會邀請現場觀眾（尤其是小朋友）互動，以營造溫馨有趣的氛圍。詢問朋友在這些表演中看到了什麼，是社交對話中非常常見的起手式。
EN： Sensory Verbs (see, hear, watch, etc.) can be followed by an object and a bare infinitive (verb root) to indicate that the subject witnessed the entire action from start to finish.
中文： 感官动词（如 see, hear, watch 等）后面可以接宾语和动词原形，用来表示主语完整地目睹或听到了该动作从开始到结束的整个过程。
I heard him sing a beautiful song.
我听见他唱了一首优美的歌。
EN： The prepositional phrase 'on one hand' acts as an adverbial modifier of manner, describing how the balance was performed.
中文： 介词短语 on one hand（用单手）在此作为方式状语，用来修饰动词 balance（平衡），说明平衡动作是如何进行的。
EN： Sensory Verbs (hear, see, watch) followed by a bare infinitive (verb in base form) indicate that the subject witnessed the entire action from start to finish.
中文： 感官动词（如 hear、see、watch）后面接动词原形（不带 to 的不定式），表示主语完整地目睹或听到了该动作发生的全过程。
I heard the bird sing a beautiful song.
我听见那只鸟唱了一首优美的歌。
EN： The subordinating conjunction 'when' is used to introduce an adverbial clause of time, showing that two events happened at or around the same time.
中文： 从属连词「when」用来引导时间状语从句，表示两个事件在同一时间或前后紧接着发生。
She smiled when she saw the flowers.
当她看到那些花时，她笑了。
EN： The verb 'watch' is a sensory verb (verb of perception). When followed by an object, it can take a bare infinitive (verb in its base form without 'to') to emphasize that the observer witnessed the entire action from start to finish.
中文： 动词 watch（观看）属于感官动词。当后面接宾语时，可以使用动词原形（不带 to 的不定式），用以强调观察者完整地目睹了该动作从开始到结束的过程。
I watched the birds fly away.
我看着那些鸟飞走了。
EN： The auxiliary verb 'did' is used to form questions in the simple past tense. When 'did' is used, the main verb (in this case, 'watch') must revert to its base form.
中文： 助动词 did 用于构成一般过去时的疑问句。当句子中使用了 did 时，主要动词（在此句中为 watch）必须恢复为动词原形。
Did you finish your homework yesterday?
你昨天完成作业了吗？
EN： Street performances involving fire (such as fire breathing or fire juggling) are popular but highly regulated in many cities worldwide. They require special permits due to safety concerns, making them a thrilling highlight of urban street culture.
中文： 涉及火的街頭表演（如吐火或耍火球）在全球許多城市都非常受歡迎，但同時也受到嚴格的法規監管。出於安全考慮，這類表演通常需要特別許可證，這也使得它們成為城市街頭文化中令人興奮的焦點。
EN： The verb 'see' is a sensory verb (verb of perception). When followed by an object and a bare infinitive (verb in its base form without 'to'), it emphasizes that the subject witnessed the entire action from start to finish.
中文： 动词「see」（看见）属于感官动词。当后面接宾语（受词）和动词原形（不带 to 的动词）时，强调主语完整目睹了该动作从始至终的过程。
I saw her cross the street safely.
我看到她安全地过马路。
EN： The prepositional phrase 'without fear' functions as an adverbial modifier, describing the manner in which the action was performed (with courage or bravery).
中文： 介词短语「without fear」（毫无畏惧地）在此作状语，用来描述动作进行时的状态或态度（充满勇气地）。
She spoke in front of the large crowd without fear.
她毫无畏惧地在大群观众面前演讲。
EN： Street performances involving fire (like fire juggling or fire eating) are popular in many city squares worldwide, symbolizing high skill and thrill. The phrase 'without fear' highlights the audience's admiration for the performer's courage.
中文： 涉及火的街頭表演（如耍火球或吞火）在全球許多城市廣場都很受歡迎，象徵著高超的技巧與刺激感。片語「without fear」突顯了觀眾對表演者勇氣的欽佩。
EN： Verbs of perception (such as 'feel', 'hear', 'see', 'watch') can be followed by an object and a bare infinitive (verb without 'to') to describe an action that is completed or perceived from start to finish.
中文： 感官动词（如 feel、hear、see、watch）后面可以接宾语和动词原形（不带 to 的动词），用来描述一个完整经历或从开始到结束被察觉到的动作。
I felt the ground shake for a few seconds.
我感觉到地面震动了几秒钟。
EN： The word 'fast' can function as both an adjective and an adverb. In this sentence, 'fast' is used as an adverb modifying the verb 'beat' to describe the speed of the heartbeat.
中文： 单词 fast 既可以作形容词也可以作副词。在本句中，fast 用作副词，修饰动词 beat，用来描述心跳的速度。
EN： The verb 'notice' is a sensory verb (verb of perception). When followed by an object and a present participle (V-ing), it emphasizes that the action was in progress or ongoing at the moment it was observed.
中文： 动词「notice」（注意到）属于感官动词。当后面接宾语（受词）和现在分词（V-ing）时，用以强调在观察到的那一刻，该动作正在进行中。
I noticed the dog chasing its tail in the yard.
我注意到那只狗在院子里追着自己的尾巴。
EN： The prepositional phrase 'in the crowd' functions as an adverbial modifier of place, indicating where the action of clapping or the baby was located.
中文： 介词短语「in the crowd」（在人群中）在此作为地点状语，用来指示拍手动作或婴儿所处的位置。
She found her lost keys in the drawer.
她在抽屉里找到了她丢失的钥匙。
EN： The verb 'watch' is a sensory verb (verb of perception). When followed by an object and a present participle (V-ing), it emphasizes that the action was in progress or ongoing at the moment of observation.
中文： 动词「watch」（观看）属于感官动词。当后面接宾语（受词）和现在分词（V-ing）时，用来强调在观察的那个瞬间，该动作正在进行中。
I watched the children playing in the park.
我看到孩子们在公园里玩耍。
EN： The prepositional phrase 'to the music' is used to indicate moving, dancing, or singing in harmony with the rhythm of the music.
中文： 介词短语「to the music」用来表示伴随着音乐的旋律或节奏进行移动、跳舞或唱歌，其中的「to」有「配合、随着」的意思。
She swayed to the music.
她随着音乐随风摇摆。
EN： The superlative adjective 'the best' is used to compare three or more things, indicating the highest degree of quality. It is the irregular superlative form of 'good'.
中文： 最高级形容词「the best」用于三个或以上的事物进行比较，表示最高程度的品质。它是形容词「good」（好的）的不规则最高级变化。
This is the best coffee I have ever tasted.
这是我喝过最棒的咖啡。
EN： The word 'ever' is used after a superlative adjective to mean 'at any time in history' or 'of all time', emphasizing the extreme nature of the statement.
中文： 副词「ever」置于最高级形容词之后，表示「有史以来」或「一直以来」，用以加强语气，强调该声明的极致程度。
It was the most beautiful sunset ever.
那是史上最美丽的日落。
EN： The phrase 'best... ever' is a very common colloquial expression in English-speaking cultures used to express high enthusiasm and praise. While grammatically a superlative, it is often used hyperbolically in daily conversations to show appreciation rather than literal historical comparison.
中文： 「best... ever」（史上最棒的...）是英語系國家中非常常見的口語表達，用來表達極大的熱情與讚美。雖然在語法上是最高級，但在日常對話中，它經常被當作誇張法來使用，以表達由衷的讚賞，而非真的進行歷史數據的比較。
EN： "Let's" is a contraction of "let us," used to make suggestions or proposals. It is followed by the base form of the verb (bare infinitive).
中文： Let's 是 let us 的缩写，用于提出建议或提议。后面必须接动词原形（不带 to 的不定式）。
Let's go to the park this afternoon.
我们今天下午去公园吧。
EN： "Next weekend" is a time expression used to refer to the upcoming Saturday and Sunday. In English, prepositions like "on" or "at" are typically omitted before "next" when indicating time.
中文： Next weekend 是用以指即将到来的星期六和星期日的副词短语。在英语中，当 next 用于表示时间时，前面通常省略 on 或 at 等介词。
We are planning to visit our grandparents next weekend.
我们计划下周末去拜访我们的祖父母。
重要单词附有 IPA 发音、定义、例句和互动式测验。
在本文中： 表演者，艺人
在本文中： 玩杂耍（连续往空中抛接多个物体）
在本文中： 人群，群众
在本文中： 欢呼，喝彩
在本文中： 天赋，才能
在本文中： 热闹的，充满生气的
在本文中： 保持平衡
在本文中： 恐惧，害怕
片语包含类型标示、双语定义、用法说明和例句。
A person who performs in public places for money, such as a musician, actor, or acrobat.
街头艺人
At the same time; simultaneously.
同时
In a brave manner; showing no signs of being afraid.
毫不畏惧地，勇敢地