“无所不用其极”,原意是指尽一切努力,来达到的最高境界。现在表示为达到目的,不择手段,含贬义。可以翻译为“resort to every conceivable means, employ the meanest of tricks”。

例句:

为了博取上级的欢心,他无所不用其极

He resorted to every conceivable means to win the favour of his superiors.

贪婪的老板为了攫取利润而无所不用其极。

The greedy boss stopped at nothing to gain profit.