n.禍根；失敗的原因

動詞undo的現(xiàn)在分詞形式.

Greed was his undoing. 貪婪就是墜落

He was not to know then that this was to prove his undoing. 當時他并不知道，這件事為他種下了禍根。

In the end his ambition was his undoing. 到最后他的野心是他完蛋的原因。

Stress can be the undoing of so many fine players. 緊張可能是這許多優(yōu)秀選手失敗的原因。

That proved to be my undoing, for I soon got back to my old bad habit of dozing off in front of the screen. 這證明了我的失敗，因為我不久就回到電視屏幕前打瞌睡的壞習慣去了。