keep at sth

 
  • 不斷地做

keep at sth的用法和樣例:

例句

  1. He pegged away at the work throughout the night.
    她孜孜不倦地做了一個(gè)通宵。
  2. They were toiling at their experiment.
    他們正在辛苦地做試驗。
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