白費力氣

 

白費力氣的用法和樣例:

例句

  1. 大夏天推銷大衣真是白費力氣。
    Trying to sell overcoats in midsummer is a real mug's game.
  2. 他白費力氣想抓住停在花上的蝴蝶。
    He tried in vain to catch the butterfly on the flower.
  3. 過去的事哭也是白費力氣。
    It is no use crying about the past.
  4. 在無人島上誇耀富有也是白費力氣。
    It is of no use boasting of being rich on a desert island.
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