[非正式用语]
It is crazy of you to buy the car at such a high price.
以这么高的价钱买这辆汽车,你真是疯了。
What a crazy idea!
这个想法真是荒唐。
She went crazy with fear.
她害怕得发狂。
The sound is driving me crazy (= really annoying me).
那种声音快让我发疯了。
I’m crazy about football.
我很痴迷足球。