前功盡棄的英文：
[Literal Meaning]
former/effort/all/lose
All the previous efforts are wasted.

[解釋]
以前的努力全部白費(fèi)。

[Explanation]
All that has been achieved is spoiled.

[例子]
你已經(jīng)快要拿到博士學(xué)位了，一定不要前功盡棄。

[Example]
You are about to earn your PhD degree and should not waste all the previous efforts.

[英文等價詞]
to fall by the wayside
blow off one's dogs
go by the board
pass by the board

參考例句：
  • all labour lost;waste all the previous efforts;All previous work is wasted
    前功盡棄
  • All our previous efforts were wasted because of his imprudence.
    他的輕率使我們前功盡棄。
  • If we stop where we are, all our previous efforts will be wasted.
    如果我們就此止步，就會前功盡棄。
  • The dam must be closed before the rainy season sets in, or all our labour will be lost
    大壩一定要在雨季開始以前合攏，否則就會前功盡棄。
  • If his plan isn't approved of by the Committee, all his work will have been wasted.
    如果委員會不同意他的計劃,他便前功盡棄了。

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