work hard at

 
  • v. 努力工作或學習

work hard at的用法和樣例:

例句

  1. He worked hard at his biology.
    他努力學習生物學。
  2. If you work hard at other times, you won't have to sit up all night before the exam.
    你平時如果努力學習,在考試前就不必這樣整夜開夜車了。

work hard at的相關資料:

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