EN： The Past Continuous tense (was/were + verb-ing) is used to describe an action that was in progress at a specific moment in the past. In this sentence, 'were you doing' asks about an ongoing activity.
中文： 過去進行式（was/were + 動詞-ing）用於描述在過去某個特定時間點正在進行的動作。在本句中，「were you doing」詢問的是當時正在持續進行的活動。
What were you watching when I called?
我打電話給你的時候，你正在看什麼？
EN： The conjunction 'when' introduces a short, sudden action in the Simple Past tense ('the bell rang') that interrupts a longer, ongoing action in the Past Continuous tense.
中文： 連接詞「when」（當……時）引導一個使用簡單過去式的短暫、突然發生的動作（「the bell rang」），這個動作打斷了另一個正在進行中、時間較長的過去進行式動作。
I was cooking dinner when the phone rang.
電話響起時，我正在做晚餐。
EN： The Past Continuous tense (was/were + V-ing) is used to describe an action that was in progress at a specific moment in the past. It is often interrupted by a shorter action in the Simple Past tense.
中文： 過去進行式（was/were + 現在分詞）用於描述在過去某個特定時間點正在進行的動作。這個動作通常會被另一個發生在過去簡單式的短暫動作所中斷。
I was cooking dinner when the phone rang.
當電話響起時，我正在做晚飯。
EN： The phrasal verb 'go off' means to make a sudden loud noise, such as an alarm ringing or a bomb exploding.
中文： 片語動詞「go off」在這裡的意思是（警報器、鬧鐘等）突然響起，或（炸彈）爆炸。
My alarm goes off at 6:00 AM every morning.
我的鬧鐘每天早上六點鐘響起。
EN： In Western schools and workplaces, fire drills and alarm testing are very common safety procedures. The phrase 'the alarm went off' in a school context usually refers to a fire alarm or a scheduled drill, which requires everyone to evacuate calmly.
中文： 在西方學校和職場中，消防演習和警報測試是非常常見的安全程序。在學校情境中，'the alarm went off'（警報器響起）通常是指火警警報或例行演習，這時每個人都需要冷靜地進行疏散。
EN： The Past Continuous tense ('were eating') is used to describe an ongoing background action in the past, while the Past Simple tense ('flew') describes a shorter, completed action that interrupted it.
中文： 過去進行式（were eating）用於描述過去正在進行的背景動作，而過去簡單式（flew）則用來描述打斷該背景動作的較短、已完成的動作。
While I was studying, the phone rang.
當我正在讀書時，電話響了。
EN： The subordinating conjunction 'while' is used to introduce a longer background action. When the 'while' clause comes at the beginning of the sentence, a comma is required to separate it from the main clause.
中文： 從屬連接詞「while」（當……時）用於引導較長的背景動作。當 while 引導的子句放在句首時，必須使用逗號與主要子句隔開。
While we were walking, it started to rain.
當我們正在走路時，開始下雨了。
EN： Past Continuous Tense (was/were + -ing) describes an action that was in progress at a specific moment in the past. It sets the scene for what was happening when something else occurred.
中文： 過去進行式（was/were + -ing）描述過去某個特定時刻正在進行的動作。它為另一個事件發生時的背景情況設定場景。
I was studying when my friend called me.
當我的朋友打電話給我時，我正在讀書。
EN： The conjunction 'when' introduces a specific moment in time (Simple Past) that interrupts or occurs during the ongoing action (Past Continuous). The Past Continuous clause typically comes first, followed by the 'when' clause with Simple Past.
中文： 連接詞 'when' 引入一個特定的時間點（簡單過去式），打斷或發生在進行中的動作（過去進行式）期間。過去進行式子句通常放在前面，然後是帶有簡單過去式的 'when' 子句。
She was cooking when the power went out.
當停電時，她正在做飯。
EN： In English-speaking educational contexts, describing what students were doing when an interruption occurred is a common way to narrate classroom events. This sentence structure is typical in storytelling about school experiences.
中文： 在英語教育環境中，描述學生在中斷發生時正在做什麼是敘述課堂事件的常見方式。這種句子結構在講述學校經歷的故事時很典型。
EN： The Past Continuous tense (was/were + verb-ing) is used to describe an action that was in progress at a specific moment in the past. In this sentence, 'was sleeping' shows an ongoing background action.
中文： 過去進行式（was/were + 動詞-ing）用於描述在過去某個特定時間點正在進行的動作。在此句子中，「was sleeping」表示一個正在進行的背景動作。
I was watching TV when the power went out.
停電時我正在看電視。
EN： The conjunction 'when' introduces a shorter, interrupting action in the Simple Past tense ('called') that happened while the longer background action ('was sleeping') was in progress.
中文： 連接詞「when」引導一個使用簡單過去式（'called'）的短暫干擾動作，該動作發生在較長的背景動作（'was sleeping'）進行期間。
She was cooking dinner when the doorbell rang.
門鈴響時她正在做晚飯。
EN： In English-speaking school contexts, 'called' can mean either calling someone's name in class (to answer a question) or calling them on the phone. Given the classroom context, it likely refers to the teacher calling on the student during a lesson or roll call.
中文： 在英語學校情境中，「called」可以指在課堂上叫某人的名字（要求回答問題），也可以指打電話。結合上下文，這裡很可能是指老師在課堂上點名或叫學生回答問題。
EN： The Past Continuous tense (was/were + verb-ing) is used here with the conjunction 'while' to describe two actions that were happening simultaneously in the past. Unlike 'when', which often introduces a sudden, short action, 'while' is typically used to connect two continuous, ongoing background activities.
中文： 過去進行式（was/were + 動詞-ing）在此處與連接詞「while」結合使用，用來描述過去同時發生的兩個持續性動作。與常接短暫、突然動作的「when」不同，「while」通常用於連接兩個同時進行的背景活動。
My brother was playing video games while I was doing my homework.
我寫功課時，我弟弟正在打電動。
EN： The Past Continuous tense (was/were + verb-ing) is used to describe an action that was in progress at a specific point in the past.
中文： 過去進行式（was/were + 動詞-ing）用於描述在過去某個特定時間點正在進行的動作。
We were eating dinner when the phone rang.
電話響起時，我們正在吃晚餐。
EN： The conjunction 'when' introduces a short, sudden action in the Simple Past tense that interrupts a longer action in progress.
中文： 連接詞「when」引導一個使用簡單過去式的短暫、突然動作，用以打斷另一個正在進行中的較長動作。
She was studying when the lights went out.
停電時，她正在看書。
EN： The Past Continuous tense ('was reading') is used to describe an action that was in progress at a specific moment in the past, often interrupted by another shorter action.
中文： 過去進行式（was reading）用於描述在過去某個特定時刻正在進行的動作，這個動作通常會被另一個較短暫的動作所中斷。
I was cooking dinner when the guests arrived.
當客人到達時，我正在做晚餐。
EN： The conjunction 'when' introduces a sudden, shorter action in the Simple Past tense ('rang') that interrupts a longer ongoing action.
中文： 連接詞「when」引導一個使用過去簡單式（rang）的短暫動作，用來表示中斷了另一個正在持續進行的較長動作。
He was sleeping when the alarm went off.
當鬧鐘響起時，他正在睡覺。
EN： The Past Continuous tense (was/were + verb-ing) is used to describe an action that was in progress at a specific time in the past. It is often introduced by 'while' to show a longer background action.
中文： 過去進行式（was/were + 動詞-ing）用於描述在過去特定時間點正在進行的動作。通常由 'while'（當……時）引導，用來表示一個持續時間較長的背景動作。
While I was studying, the phone rang.
當我在讀書時，電話響了。
EN： The Simple Past tense (e.g., 'dropped') is used for a completed action in the past. When combined with the Past Continuous, the Simple Past represents a shorter, interrupting event.
中文： 簡單過去式（例如 'dropped'）用於表示過去已完成的動作。當與過去進行式結合使用時，簡單過去式通常表示一個較短的、中途插進來的事件。
She was cooking dinner when she burned her finger.
她正在做晚餐時燒傷了手指。
EN： The Past Continuous tense (was/were + verb-ing) is used to describe an action that was in progress at a specific moment in the past. Here, 'was talking' represents an ongoing background action.
中文： 過去進行式（was/were + 動詞-ing）用於描述在過去某個特定時間點正在進行的動作。在此處，「was talking」（正在講話）代表一個正在進行的背景動作。
They were studying when the lights went out.
當停電時，他們正在看書。
EN： The conjunction 'when' is used to introduce a shorter, interrupting action in the Simple Past tense ('the class began') that occurred during the longer background action.
中文： 連接詞「when」（當……時）用來引導一個時間較短、具干擾性質的過去簡單式動作（「the class began」課堂開始），該動作發生在較長的背景動作進行期間。
I was cooking dinner when the phone rang.
電話響的時候，我正在做晚飯。
EN： Past Continuous Tense (Wh- Questions): Used to ask about an ongoing action that was happening at a specific point or period in the past. It is formed with 'Wh- word + was/were + subject + verb-ing'.
中文： 過去進行式（Wh- 疑問句）：用於詢問在過去某個特定時間點或期間正在進行的動作。其結構為「Wh- 疑問詞 + was/were + 主詞 + 現在分詞 (V-ing)」。
What were you watching on TV last night?
你昨天晚上在電視上看什麼節目？
EN： Preposition 'during': Used to state that something happened within a specific period of time or throughout the course of an event. It is followed by a noun phrase.
中文： 介係詞「during」（在……期間）：用於表示某事發生在某個特定時間段或活動的過程中。後面接名詞片語。
She fell asleep during the movie.
她在看電影時睡著了。
EN： In many English-speaking countries, schools regularly conduct 'drills' (such as fire drills, earthquake drills, or lockdown drills) to ensure students and staff know how to react safely in an emergency. It is a common part of the school routine.
中文： 在許多英語系國家的學校中，會定期舉行「drills」（防災演習，如消防演習、地震演習或防空避難演習），以確保學生和教職員知道在緊急情況下如何安全應對。這是學校日常生活中非常常見的一部分。
EN： The Past Continuous Tense (was/were + verb-ing) is used to describe an action that was in progress at a specific point in the past. In this sentence, 'were walking' shows an ongoing action during a past event (the drill).
中文： 過去進行式（was/were + 動詞-ing）用於描述在過去特定時間點正在進行的動作。在本句中，「were walking」表示在過去某個事件（演習）期間正在進行的動作。
They were studying in the library when the lights went out.
停電時，他們正在圖書館裡讀書。
EN： Adverbs of manner (like 'calmly') describe how an action is performed. They are often placed after the verb or auxiliary verb to modify the action.
中文： 情態副詞（如「calmly」）用來描述動作進行的方式。它們通常放在動詞或助動詞之後，用以修飾該動作。
She spoke softly to the crying baby.
她溫柔地對著哭泣的嬰兒說話。
EN： In Western schools, 'the field' usually refers to the grassy sports field or playground outside the school building. During emergency drills (like fire drills or earthquake drills), students are trained to walk 'calmly' and orderly to this designated safe assembly area.
中文： 在西方學校中，「the field」通常指校舍外的草地運動場或操場。在防災演習（如消防演習或地震演習）期間，學生們會接受訓練，要求「冷靜地」（calmly）且有秩序地走向這個指定的安全集結區。
EN： The Simple Past Tense is used to describe completed actions that happened at a specific time in the past. In this sentence, 'happened' is the regular past tense form of the verb 'happen', indicating the event occurred and was completed 'yesterday'.
中文： 簡單過去式（Simple Past Tense）用於描述在過去特定時間已經完成的動作或發生的事件。在此句子中，'happened' 是動詞 'happen' 的規則過去式變化，表示該事件在「昨天（yesterday）」發生並已結束。
An unexpected package arrived at my doorstep this morning.
今天早上一個意想不到的包裹送到了我家門口。
EN： The preposition 'during' is used to state that something happens within the time limit of an event, activity, or period. It is followed by a noun phrase (e.g., 'our class') rather than a clause.
中文： 介係詞 'during'（在...期間）用於表示某事發生在某個事件、活動或特定時間段的過程之中。後面必須接名詞或名詞片語（例如 'our class'），而非完整子句。
Please keep your phones silent during the movie.
電影放映期間請將手機保持靜音。
EN： The Past Continuous tense (was/were + verb-ing) is used to describe an action that was in progress at a specific time in the past. In this sentence, 'were taking' indicates an ongoing activity (taking a test) during a past time frame (in the morning).
中文： 過去進行式（was/were + 動詞-ing）用於描述在過去特定時間點正在進行的動作。在本句中，「were taking」表示在過去的時間段（早上）中正在進行的活動（進行測試）。
They were playing basketball when it started to rain.
開始下雨時，他們正在打籃球。
EN： Noun adjuncts (or noun modifiers) occur when a noun (like 'math') is used to modify another noun (like 'test'). Here, 'math' functions as an adjective to specify the type of 'test'.
中文： 名詞修飾語是指一個名詞（如 'math'）被用來修飾另一個名詞（如 'test'）。在這裡，「math」起到了形容詞的作用，用來明確「test」（測試）的類型。
EN： The Past Continuous tense (was/were + verb-ing) is used to describe an action that was in progress at a specific moment in the past, often interrupted by a shorter action in the Simple Past tense.
中文： 過去進行式（was/were + 動詞-ing）用於描述在過去某個特定時間點正在進行的動作，通常會被另一個較短的過去簡單式動作所中斷。
While I was cooking dinner, the phone rang.
當我正在做晚飯時，電話響了。
EN： The subordinating conjunction 'while' is used to introduce a longer background action in the continuous tense, whereas 'when' is typically used for the shorter, interrupting action.
中文： 從屬連接詞「while」用於引導進行式中較長的背景動作，而「when」則通常用於引導較短、具中斷性的動作。
The power went out while we were watching a movie.
當我們正在看電影時，停電了。
EN： The Past Continuous Tense (was/were + V-ing) is used to describe an action that was in progress at a specific time in the past. In this sentence, 'was flying' and 'were laughing' describe two ongoing actions happening simultaneously.
中文： 過去進行式（was/were + 現在分詞）用於描述在過去特定時間點正在進行的動作。在此句子中，「was flying」和「were laughing」描述了兩個同時正在進行的動作。
I was studying while my brother was playing video games.
當我正在讀書時，我弟弟正在玩電玩遊戲。
EN： The conjunction 'while' is used to connect two actions that were happening at the same time in the past, usually both in the past continuous tense.
中文： 連接詞「while」（當……的時候）用於連接兩個在過去同時發生的動作，通常這兩個動作都會使用過去進行式。
While she was cooking dinner, the phone rang.
當她正在做晚飯時，電話響了。
EN： The Past Continuous tense (was/were + verb-ing) is used to describe an action that was in progress at a specific moment in the past. In this sentence, 'was trying' shows an ongoing action that was happening during the classroom event.
中文： 過去進行式（was/were + 現在分詞）用於描述在過去某個特定時間點正在進行的動作。在本句中，「was trying」表示在教室事件發生期間，老師正在進行的持續動作。
They were watching a movie when the power went out.
停電時，他們正在看電影。
EN： The verb 'try' followed by a to-infinitive (try + to + verb) means to make an effort to do something difficult. This contrasts with 'try + verb-ing', which means to do something as an experiment.
中文： 動詞「try」後面接不定詞（try + to + 動詞原形）表示努力嘗試做某件困難的事。這與「try + 動詞-ing」（嘗試做某事以看效果，即實驗性質）不同。
I am trying to learn how to play the guitar.
我正試著學習如何彈吉他。
EN： The Past Continuous Tense (was/were + verb-ing) is used to describe actions that were in progress at a specific time in the past. Here, 'were standing' and 'were pointing' describe two ongoing background actions.
中文： 過去進行式（was/were + 動詞-ing）用於描述在過去特定時間點正在進行的動作。在此句中，「were standing（正站著）」和「were pointing（正指著）」描述了兩個同時在進行的背景動作。
They were studying while it was raining outside.
外面下著雨時，他們正在看書。
EN： The conjunction 'while' is used to connect two actions happening at the same time. It often contrasts two parallel activities in the past continuous tense.
中文： 連接詞「while（然而、當…的時候）」用於連接兩個同時發生的動作。它常用於對比過去進行式中兩個平行的活動。
I was cooking while my brother was washing the dishes.
我正在做飯，而我弟弟正在洗碗。
EN： The adverb 'Suddenly' is used at the beginning of a sentence to introduce an unexpected event, often shifting the narrative focus. It is followed by a comma.
中文： 副詞「Suddenly」（突然間）常用於句首，用來引入出乎意料的事件，通常會轉移敘事焦點。在句首使用時，其後通常會加上逗號。
Suddenly, the lights went out.
突然間，燈全部熄滅了。
EN： The phrasal verb 'land on' means to come down from the air and settle on a surface. It is followed by a noun phrase acting as the prepositional object.
中文： 片語動詞「land on」表示從空中降落並停留在某個表面上。其後接名詞片語作為介系詞的受詞。
The butterfly landed on her shoulder.
蝴蝶降落在她的肩膀上。
EN： The Past Continuous tense ('was sitting') is used to describe an action that was in progress at a specific moment in the past, often interrupted by a shorter action in the Simple Past tense ('looked').
中文： 過去進行式（was sitting）用於描述在過去特定時間點正在進行的動作，通常會被另一個使用過去簡單式（looked）的短暫動作所中斷。
I was reading a book when the phone rang.
電話響起時，我正在讀書。
EN： The adverbial 'still' is used here as an adjective meaning 'motionless' or 'not moving', modifying the subject 'He' through the linking-like action of 'sitting'.
中文： 這裡的 'still' 用作形容詞，意思是「靜止不動的」或「沒動的」，修飾主詞 'He'，表示坐著時的狀態。
Please stand still while I take your photo.
我幫你拍照時請站著別動。
EN： The use of the coordinating conjunction 'and' to connect two independent clauses (complete sentences) that happen in chronological order. This creates a compound sentence.
中文： 使用對等連接詞「and」來連接兩個依時間順序發生的獨立子句（完整句子）。這會形成一個合句。
She finished her homework, and she went to bed.
她寫完了功課，然後就去睡覺了。
EN： The phrasal verb 'fly out' (past tense: 'flew out') combines the verb 'fly' with the particle 'out' to indicate direction of movement.
中文： 片語動詞「fly out」（過去式為「flew out」）結合了動詞「fly」與質詞「out」，用來表示移動的方向（飛出去）。
A butterfly flew out of the window.
一隻蝴蝶從窗口飛了出去。
EN： The Past Continuous tense (was/were + verb-ing) is used to describe an action that was in progress at a specific point in the past. It is often interrupted by a shorter action in the Simple Past tense.
中文： 過去進行式（was/were + 動詞-ing）用於描述在過去特定時間點正在進行的動作。這類動作通常會被另一個使用過去簡單式的短暫動作所中斷。
What were you watching when the power went out?
停電的時候你正在看什麼節目？
EN： The conjunction 'when' is used to introduce a single, completed event in the past (Simple Past) that interrupts a longer ongoing action.
中文： 連接詞「when」（當……時）用來引導一個發生在過去、已完成的單一事件（過去簡單式），該事件通常會中斷另一個正在持續進行的較長動作。
I was cooking dinner when the phone rang.
電話響的時候我正在做晚飯。
EN： In English-speaking cultures, asking 'What were you doing when...?' is a common, friendly way to start a conversation or show interest in someone's day, especially after an interruption or a shared event. Adding the person's name ('Emma') at the end makes the question feel more personal and direct.
中文： 在英語系國家中，詢問「What were you doing when...?」（當……時你正在做什麼？）是一種常見且友善的對話開頭方式，用來表達對他人生活的關心，特別是在發生某個插曲或共同事件之後。在句尾加上對方的名字（Emma）會讓對話顯得更親切且有針對性。
EN： The Past Continuous tense (was/were + verb-ing) is used to describe an action that was in progress at a specific moment in the past. In this sentence, 'was practicing' shows an ongoing activity in the past.
中文： 過去進行式（was/were + 動詞-ing）用於描述在過去某個特定時間點正在進行的動作。在本句中，「was practicing」表示過去某個時刻正在持續進行的活動。
I was cooking dinner when you called.
你打電話來的時候，我正在做晚飯。
EN： The preposition 'at' is used with 'home' (at home) to indicate a specific location or state of being inside one's house.
中文： 介系詞「at」與「home」連用（at home），用來表示在自己家裡的特定位置或狀態。
They decided to stay at home because of the rain.
因為下雨，他們決定待在家裡。
EN： The Past Continuous tense (was/were + verb-ing) is used here with 'while' to describe a longer, ongoing background action in the past ('was jogging').
中文： 過去進行式（was/were + 動詞-ing）在此與連接詞 'while'（當……時）搭配使用，用來描述過去某個正在進行中的背景動作（'was jogging'，正在慢跑）。
While she was cooking dinner, the phone rang.
當她正在做晚餐時，電話響了。
EN： The Past Simple tense ('saw') is used to describe a shorter, completed action that interrupted or occurred during the longer background action.
中文： 過去簡單式（'saw'，看見）用來描述在過去持續進行的背景動作中，突然發生或中斷該動作的另一個短暫且已完成的動作。
While we were watching a movie, we heard a loud noise.
當我們正在看電影時，我們聽到一聲巨響。
EN： The Past Continuous tense (was/were + verb-ing) is used to describe an action that was in progress at a specific point in the past.
中文： 過去進行式（was/were + 動詞-ing）用於描述在過去特定時間點正在進行的動作。
They were playing soccer when it started to rain.
開始下雨時，他們正在踢足球。
EN： The conjunction 'when' introduces a shorter, interrupting action in the Simple Past tense, which happens in the middle of a longer action (Past Continuous).
中文： 連接詞「when」引導一個較短、具干擾性質的單純過去式動作，該動作發生在較長動作（過去進行式）的進行過程中。
I was sleeping when the phone rang.
電話響的時候我正在睡覺。
EN： The Past Continuous tense (was/were + verb-ing) is used to describe an action that was in progress at a specific point in the past. It often sets the background scene.
中文： 過去進行式（was/were + 動詞-ing）用於描述在過去特定時間點正在進行的動作。它通常用來設定故事或事件的背景背景。
I was cooking dinner when the phone rang.
電話響的時候，我正在做晚餐。
EN： The conjunction 'when' introduces a sudden, shorter action in the Past Simple tense that interrupts a longer action in progress (Past Continuous).
中文： 連接詞「when」（當……時）用來引導一個使用過去簡單式的短暫、突然發生的動作，這個動作通常會中斷另一個正在進行中的較長動作（過去進行式）。
They were playing soccer when it started to snow.
當開始下雪時，他們正在踢足球。
EN： The Past Continuous tense (was/were + V-ing) is used here with the conjunction 'while' to describe two continuous actions that were happening at the same time in the past.
中文： 過去進行式（was/were + V-ing）在此處與連接詞「while（當…之時）」連用，用來描述過去同時正在發生的兩個持續性動作。
My dad was cooking while my mom was washing the dishes.
我爸爸在煮飯時，我媽媽正在洗碗。
EN： The conjunction 'while' is used to connect two clauses representing actions occurring simultaneously. It is usually followed by a continuous tense.
中文： 連接詞「while」用於連接兩個表示同時發生之動作的子句。其後通常接進行式，但在口語中，若動作本身具有持續性（如 study），也可以接簡單過去式。
While I was walking home, it started to rain.
當我正走路回家時，開始下雨了。
EN： The Past Continuous tense (was/were + verb-ing) is used here in a question format ('Were you sleeping...') to ask about an action that was in progress at a specific moment in the past.
中文： 過去進行式（was/were + 動詞-ing）在此處以問句形式（Were you sleeping...）呈現，用來詢問在過去特定時間點正在進行的動作。
Were you watching TV when I called?
我打電話給你的時候，你正在看電視嗎？
EN： The conjunction 'when' introduces a time clause in the Simple Past tense ('when the bell rang') to describe a sudden, shorter action that interrupted the longer action in progress.
中文： 連接詞「when」引導簡單過去式的時間副詞子句（when the bell rang），用來描述一個突然發生、打斷原本正在進行中動作的短暫事件。
I was cooking dinner when the lights went out.
停電的時候，我正在做晚飯。
EN： The Past Continuous tense (was/were + verb-ing) is used to describe an action that was in progress at a specific moment in the past. It often shows that the action was ongoing when another event interrupted it.
中文： 過去進行式（was/were + 動詞-ing）用於描述在過去特定時間點正在進行的動作。它通常表示某個動作在另一個事件發生（或中斷）時正在持續進行中。
I was reading a book when the phone rang.
電話響起時，我正在看書。
EN： The preposition 'about' is used after the verb 'dream' to indicate the subject or content of the dream.
中文： 介系詞 'about' 常用在動詞 'dream'（做夢）之後，用來表示夢境的主題或內容。
She often dreams about traveling around the world.
她經常夢到環遊世界。
EN： In school contexts globally, daydreaming about lunchtime or food during a boring or quiet class is a highly relatable and humorous sentiment shared among students.
中文： 在世界各地的學校情境中，學生在枯燥或安靜的課堂上「想著午餐吃什麼」或做關於食物的白日夢，是一個非常能引起共鳴且幽默的共同經驗。
EN： The past simple tense of the 'be' verb ('were') is used here to describe a state in the past. 'We' is a plural subject, so it takes 'were'.
中文： 這裡使用 be 動詞的過去簡單式（were）來描述過去的狀態。主詞「We」（我們）是複數，因此搭配「were」。
They were tired after the long walk.
長途跋涉後，他們累了。
EN： The coordinating conjunction 'but' is used to connect two independent clauses that show a contrast. It is preceded by a comma when connecting two complete sentences.
中文： 對等連接詞「but」（但是）用於連接兩個表示對比的獨立子句。當連接兩個完整的句子時，前面通常會加上逗號。
It was raining, but we went out anyway.
下著雨，但我們還是出去了。
EN： The idiom 'time flies' is a common expression meaning that time seems to pass very quickly, especially when one is having fun or is busy. It is often used with 'when' to specify the circumstances under which time feels fast.
中文： 成語「time flies」（光陰似箭）是一個常用的表達方式，意思是時間過得非常快，特別是在玩得開心或忙碌的時候。它經常與「when」連用，以說明時間過得快的具體情境。
Time flies when you are having fun with friends.
和朋友一起玩樂時，時間總是過得特別快。
EN： The conjunction 'when' introduces an adverbial clause of time ('when you are doing something nice'), which describes the condition or time under which the main clause action ('time flies') occurs.
中文： 連接詞「when」引導時間副詞子句（when you are doing something nice），用來修飾主句動作（time flies）發生的時間或條件。
I always listen to music when I am cleaning the house.
我打掃房子的時候總是聽音樂。
EN： The phrase 'time flies' is derived from the Latin proverb 'tempus fugit'. It is a universally understood concept across cultures, reflecting the psychological phenomenon where our perception of time shortens when we are engaged in enjoyable activities.
中文： 「time flies」這個片語源自拉丁語諺語「tempus fugit」（時光飛逝）。這是一個跨文化通用的概念，反映了一種心理現象：當我們專注於令人愉快的活動時，對時間流逝的感知會變快。
重要單字附有 IPA 發音、定義、例句和互動式測驗。
在本文中： 警報器
在本文中： 演練、演習
在本文中： 平靜地、從容不迫地
在本文中： 突然地
在本文中： 靜止不動的
在本文中： 終於、最後
在本文中： 鼓掌、拍手
在本文中： 練習
在本文中： 慢跑
在本文中： 閃爍、閃動
片語包含類型標示、雙語定義、用法說明和例句。
To make a sudden loud noise, especially as a signal or warning.
（警報器、鬧鐘等）響起
Time passes surprisingly quickly.
光陰似箭、時間飛逝
To complete an exam or evaluation.
參加考試、測驗