1. the day before today
昨天，今日的前一天
Yesterday was Tuesday.
昨天是星期二。
I saw her yesterday.
我昨天見到她了。
The meeting happened yesterday afternoon.
會議是昨天下午舉行的。
Yesterday Meaning（定義、用法、例句與發音）
yesterday
noun
快速理解
What does "Yesterday" mean?What are 2-3 core uses of "Yesterday"?
指今天之前的那一天，也用於比喻過去的時間。
- 1
時間點
EN: the day before today
翻譯: 今天之前的那一天
- 2
近期過去
EN: the recent past
翻譯: 近期、不久前的過去
- 3
往昔
EN: a time in the past
翻譯: 泛指過去的時光
小提醒：注意 'yesterday' 在中文裡沒有直接對應的單字，需視語境翻譯為「昨天」、「昨日」或「過去」。
發音（How to Pronounce "Yesterday" in English）
How to pronounce "Yesterday" in English?"Yesterday" US vs UK pronunciation
點擊下方的 US / UK 按鈕可播放發音。
Real-life Examples of "Yesterday" from YouTube Videos
South Korea would accept Trump-Kim deal to freeze North Korea’s nuclear programme | BBC News
BBC News
“So this was actually from a speech that Kim Jong-un gave to the North Korean Parliament yesterday, but the North Koreans have just released these lines this morning”
(1 out of 83)
Definitions（定義）
What are the definitions of "Yesterday"?How does "Yesterday" change by context?
2. the recent past
過去，不久前的日子
The technology of yesterday seems outdated now.
過去的科技現在看來已經過時了。
He's a star of yesterday, no longer in the spotlight.
他是過去的明星，已不再受矚目。
3. on the day before today
在昨天
She arrived yesterday.
她是昨天抵達的。
I finished the report yesterday.
我昨天完成了報告。
Grammar & Patterns（句型）
What are common sentence patterns for "Yesterday"?How to make natural sentences with "Yesterday"?
| Pattern | Meaning | Example |
|---|---|---|
| yesterday | 昨天 | I saw her yesterday. (我昨天見到她了。) |
| yesterday morning/afternoon/evening | 昨天早上/下午/晚上 | We met yesterday afternoon. (我們昨天下午見面了。) |
| the day before yesterday | 前天 | He arrived the day before yesterday. (他前天抵達。) |
| since yesterday | 從昨天開始 | It has been raining since yesterday. (從昨天開始就一直在下雨。) |
| all day yesterday | 昨天一整天 | I was busy all day yesterday. (我昨天一整天都很忙。) |
| yesterday's + noun | 昨天的… | Yesterday's meeting was very productive. (昨天的會議非常有成效。) |
用法說明
How is "Yesterday" different from similar structures?What usage mistakes are common with "Yesterday"?
yesterday 與時間副詞的搭配
- yesterday 本身即為時間副詞，表示「昨天」，通常直接放在句首或句尾，不需再加介系詞。
- 要表示「在昨天早上/下午/晚上」，應使用 yesterday morning/afternoon/evening，而非 on yesterday morning。
- 要表示「昨天一整天」，可以使用 all day yesterday 或 yesterday all day。
- 在間接引語中，當主句動詞為過去式時，yesterday 通常會改為 the day before 或 the previous day。 EN: She finished the report yesterday. 翻譯: 她昨天完成了報告。
EN:They met for coffee yesterday afternoon.
翻譯:他們昨天下午見面喝了咖啡。
EN:He said, "I saw her yesterday."
翻譯:他說：「我昨天看到她了。」
EN:He said that he had seen her the day before.
翻譯:他說他前一天看到她了。
總結建議
使用 yesterday 時，記住它本身已是完整的時間狀語，直接搭配動詞即可，無需額外添加介系詞。
易混淆對比
What is the difference between "Yesterday" and similar words?How to choose "Yesterday" vs alternatives?
yesterday vs today
「yesterday」指的是過去的一天，而「today」指的是現在正在經歷的這一天。
yesterday vs tomorrow
「yesterday」指的是過去的一天，而「tomorrow」指的是未來的一天。
yesterday vs past
「yesterday」特指「昨天」這個具體時間點，而「past」泛指「過去」這個時間範圍。
口語用法
How is "Yesterday" used in spoken English?What is the spoken vs formal difference for "Yesterday"?
引述
用於引述或轉述他人說過的話，常與引述動詞如 said、told 連用。
EN: She said, "I saw him yesterday."
翻譯: 她說：「我昨天看到他了。」
EN:He told me yesterday that he would be late.
翻譯:他昨天告訴我他會遲到。
語氣強調
在口語中，有時會重複或特別強調 "yesterday" 來表達時間很近、記憶猶新或帶有驚訝、懊悔等情緒。 EN: I just spoke to her yesterday! It feels so recent. 翻譯: 我昨天才跟她說過話！感覺就像剛剛發生一樣。
EN:Yesterday? That was yesterday? I completely forgot about it.
翻譯:昨天？那是昨天的事嗎？我完全忘了。
停頓填充
在思考或組織語句時，可能會用 "yesterday" 作為暫時的停頓點，尤其是在回憶或敘述事件順序時。 EN: So, I went to the store... yesterday... and then I ran into an old friend. 翻譯: 所以，我去了那家店……昨天……然後就遇到了一位老朋友。
EN:The meeting was... let me see... oh right, yesterday afternoon.
翻譯:那個會議是……讓我想想……哦對了，昨天下午。
正式寫作注意：在正式書面語（如報告、論文）中，應避免使用上述口語中的停頓填充或過於情緒化的重複強調。建議使用更精確、簡潔的時間狀語，例如 "on the previous day" 或直接使用具體日期。
常見短語
What common collocations use "Yesterday"?What fixed phrases with "Yesterday" should I remember?
yesterday morning
yesterday + [time of day]
昨天早上
the day before yesterday
the day before yesterday
前天
since yesterday
since + yesterday
從昨天開始
yesterday afternoon
yesterday + [time of day]
昨天下午
yesterday evening
yesterday + [time of day]
昨天晚上
as of yesterday
as of + yesterday
截至昨天
not born yesterday
not + born + yesterday
不是三歲小孩（指不天真、有經驗）
all day yesterday
all day + yesterday
昨天一整天
常見錯誤
What are common mistakes with "Yesterday"?Which "Yesterday" sentences look correct but are wrong?
×I have seen him yesterday.
✓I saw him yesterday.
時間副詞 'yesterday' 表示一個明確的過去時間點，不能與現在完成式（have + 過去分詞）連用，必須使用簡單過去式。
×I went to the park on yesterday.
✓I went to the park yesterday.
'Yesterday' 本身已是時間副詞，前面不需要介系詞 'on'。只有在特定結構如 'on the day before yesterday'（前天）才需要。
×I will do it yesterday.
✓I did it yesterday.
'Yesterday' 是過去時間，不能與表示未來的助動詞 'will' 連用。必須根據時間調整動詞時態。
×I am busy yesterdays.
✓I was busy yesterday.
'Yesterday' 是不可數名詞，沒有複數形 'yesterdays'。表示「過去」的抽象概念時可用複數，但指「昨天」這個特定日子時只能用單數。
×I didn't went there yesterday.
✓I didn't go there yesterday.
在否定句（didn't）後面，動詞必須用原形（go），而不是過去式（went）。
詞形變化
What are the word forms of "Yesterday"?What are tense/participle forms of "Yesterday"?