“不遗余力”，汉语成语，意思是把所有力量都使出来，一点也不保留，形容用尽全力做事。与英文短语“spare no effort”意思相近，表示“do everything one possibly can in order to achieve something”。也可以翻译为“ make the best of one's way，do one's utmost¹”。

 

例句：

 

我们应该不遗余力地保护环境。

We should spare no effort to protect our environment.

 

我们不遗余力地提供帮助。

We did our utmost to help.

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