ADJ
精神错乱的;精神失常的;疯狂的
Someone who is insane has a mind that does not work in a normal way, with the result that their behaviour is very strange.
例句
Some people simply can't take it and they just go insane...
一些人完全承受不了，结果就精神失常了。
Agnes was a battered woman who had killed, in self-defense, while temporarily insane.
阿格尼丝是个备受虐待的女人,她在一时精神错乱下出于自我防卫杀了人。