in vain

• 1. 徒劳: beat a dead horse | bark at the moon
• 2. 徒劳无功: carry coals to Newcastle | Futile | to flog a dead horse
• 3. 徒劳的: vain | futile | furitless | fruitless

更多释义

• 1.把这项谋杀的罪责转嫁于他人是徒劳之举。
  It was a vain attempt to shift the responsibility for the murder to somebody else.
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• 2.他徒劳地摸索着自己的口袋想找到一张纸。
  He hunted vainly through his pockets for a piece of paper.
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• 3.他知道抗议是徒劳的。
  He knew it was useless to protest.
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