1 yesterday /ˈjɛstɚˌdeɪ/ noun plural yesterdays
plural yesterdays
Learner's definition of YESTERDAY
1
[noncount] : the day before today昨天 -
Yesterday's game was canceled because of the rain.昨天的比赛因为下雨取消了。
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Yesterday was our anniversary.昨天是我们的周年纪念日。
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She gave birth to a healthy baby boy the day before yesterday. [=two days ago]前天她生下一个健康的男婴。
2
[count] somewhat formal : a time in the past : the time of previous years过去；往昔 -
The radio program features yesterday's songs as well as today's.这档广播节目既播放时下的新歌，也播放过去的老歌。
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Today's cars aren't all that different from the models of yesterday.现在的汽车跟以前的车型比也没有特别大的差异。
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That actor is yesterday's news. [=that actor was popular once, but is not popular now]那位演员已经过气了。
2 yesterday /ˈjɛstɚˌdeɪ/ adverb
2 yesterday
/ˈjɛstɚˌdeɪ/
adverb
Learner's definition of YESTERDAY
: on, during, or for the day before today在昨天 -
It rained heavily yesterday afternoon.昨天下午下了大雨。
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I mailed the application early/late yesterday morning.我昨天一早/临近中午时寄出了申请。
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It was good to see you yesterday.昨天见到你很高兴。
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We met a month ago yesterday. [=we met one month and one day ago]我们上个月的昨天见过面。
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It's been over a year since we met, but it seems like only yesterday. [=it seems as if we just met]我们上次见面是一年多以前，但感觉好像就在昨天。
wasn't born yesterday
— see born