He was charged with murder, but got off on a plea of insanity.

他被指控犯了谋杀罪，但以精神错乱为由逃过惩罚。

《牛津词典》

I also think we must do something about the insanity plea.

我还认为我们必须对疯狂的抗辩采取行动。

youdao

I also think we must do something about the insanity plea.

我还认为我们必须对疯狂的抗辩采取行动。

youdao