前天的英文：
the day before yesterday
參考例句：
The day before yesterday I read a piece of news about "Job problem" of the Two Sessions.
前天，我看了一則關於兩會就就業問題提出的.主題討論消息。
The darkest hour is nearest dawn
黎明之前天最黑
If today is Friday, the day before yesterday is Wednesday.
假如今天是星期五,前天就是星期三。
They happened to pick up each other in a park the day before yesterday.
他們前天在一個公園裏偶然結識。
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。
My wife was telling me the other day that you and Su-su have had a bit of a tiff."
“前天聽佩瑤說起，你和素素中間有了變化？”
Tom was strikingly different the next day--quiet, limp, calm like honey
湯姆的狀態顯著與前天不同--安靜、無力，像蜂蜜一樣平靜。
day是什麼意思：
n. 一天；白晝，白天；工作日；時代，時期
Things go on day by day.
事情逐日進行着。
Day by day the situation is improving.
情況在一天天地好轉。
Like this, day after day.
就這樣，日復一日。
before是什麼意思：
prep. 在…之前；優於，先於；當面
conj. 在…之前
adv. 先前，從前
Rain before seven;fine before eleven
雨過天晴
They corned their horses before the journey.
他們在啓程前用玉米餵馬。
The army was arrayed before the commander.
部隊在指揮官前列好陣勢。
yesterday是什麼意思：
n. 昨天；往昔；過去
adv. 昨天
We went rabbiting yesterday.
昨天我們打兔子去了。
They leveled a field yesterday.
他們昨天平整場地了。
The badass was schooled yesterday.
那個壞蛋昨天受到了教訓。