n.
    
      - 一天(24小時),日[C]
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--"What 
day is today?" --"It's Monday."
—"今天星期幾?" —"今天星期一。"
 
      - 白晝,白天;黎明[C][U]
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He is seldom at home during the 
day.
他白天很少在家。
 
      - 工作日[C]
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We work an 8-hour 
day.
我們一天工作八小時。
 
      - 時代,時期[P1]
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I still remember my student 
days.
我仍然記得我的學生時代。
 
      - (常與his, their等連用)成名時期,全盛時期[S]
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She was a beauty in her 
day.
她年輕時是個美人。
 
      - 競賽,戰鬥,勝利[the S]
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The debate was over; our side won the 
day.
辯論結束了;我方獲勝。
 
      - (常大寫)特定日,節日
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Christmas 
Day is the 25th of December.
耶誕節是十二月二十五日。
 
      - 一生;生涯[P]
 
    
   
  片語
  
    day off
    
      - 休息日
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She took a 
day off.
她請了一天假。
 
    
    rainy day
    
      - 艱難時刻
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He put away some money for a 
rainy day.
他儲蓄一些錢以防不測。
 
    
    before day
    
      - 天亮前
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We'll have to finish the work 
before day.
我們要在天亮前完成這項工作。
 
    
    be sb.'s day
    
      - 是某人走運之日
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It just 
wasn't 
my day yesterday.
昨天我真倒霉。
 
    
    by day
    
      - 白天
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They travelled 
by day and stayed at hotels by night.
他們白天行路,晚上在旅館過夜。
 
    
    by the day
    
      - 按日
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He got paid 
by the day.
他按日取酬。
 
    
    call it a day
    
      - 結束一天的工作
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Let's 
call it a day今天就到此為止。
 
    
    day after day
    
      - 日復一日
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He was doing the same thing 
day after day.
他天天做同樣的事。
 
    
    day and night
    
      - 日日夜夜
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I will sit by her bedside 
day and night.
我會日夜守在她的床邊。
 
    
    day by day
    
      - 一天天
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She is getting better 
day by day.
她的健康狀況一天天好起來。
 
    
    day in, day out
    
      - 日復一日
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Day in, day out, the food was the same.
食物天天都是一個樣。
  
    
    every other day
    
      - 每隔一天
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We will meet 
every other day.
我們將每隔一天會面。
 
    
    from day to day
    
      - 天天
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From day to day the town changes.
這座城鎮的面貌天天在發生變化。
  
    
    have seen/known better days
    
      - 曾有過富裕成功的日子
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Old Sam is poor now, but he 
has seen better days.
老山姆現在很潦倒,可他以前曾風光過。
 
    
    of the day
    
      - 當代的;當時的
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These are questions 
of the day.
這些是時事問題。
 
    
    one day
    
      - (過去)某一天;(將來)有一天
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He'll come to realize it 
one day.
他總有一天會懂得這一點。
 
    
    some day
    
      - 總有一天
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We will meet again 
some day.
後會有期。
 
    
    the day after tomorrow
    
      - 後天
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If today is Tuesday, 
the day after tomorrow will be Thursday.
假如今天是星期二,後天就是星期四。
 
    
    the day before yesterday
    
      - 前天
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If today is Friday, 
the day before yesterday was Wednesday.
假如今天是星期五,前天就是星期三。
 
    
    the good old days
    
      - 過去的好時光
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My grandmother always talks about 
the good old days when she was young.
我祖母總是談論她年輕時的好時光。
 
    
    the other day
    
      - 不久前某一天
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I saw David at the bank 
the other day.
幾天前我在銀行見到過大衛。
 
    
    to a/the day
    
      - 一天也不差;恰好
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It's 5 years 
to the day.
恰好五年整。
 
    
    to this day
    
      - 至今
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To this day Peter won't eat peas.
彼得至今還是不肯吃豌豆。
  
    
   
  辨析
  
 
  n.
  - a twenty-four-hour period as a unit of time, reckoned from one midnight to the next and corresponding to a rotation of the earth on its axis. 
▸the time between sunrise and sunset.
 ▸Astronomy  a single rotation of a planet in relation to its primary.
 - a particular period of the past:
 the laws were very strict in those days.
 ▸
(the day)
 the present time.
 ▸
(
days)
 a particular period in a person's life:
 my student days.
  ▸
(one's day)
 the successful or influential period of a person's life.
 
adj.
 working or done during the day.
 
  Phrase
  
  Etymology
  OE dæg, of Gmc origin; rel. to Ger. Tag.