crazier , craziest
If you describe someone or something as crazy, you think they are very foolish or strange.
People thought they were all crazy to try to make money from manufacturing.
人们认为他们都太蠢了,居然想通过制造业赚钱。
Someone who is crazy is insane.
mad
If I sat home and worried about all this stuff, I'd go crazy.
要是我坐在家里为所有这些事发愁,我会发疯的。
If you are crazy about something, you are very enthusiastic about it. If you are not crazy about something, you do not like it.
He's still crazy about both his work and his hobbies.
他依旧迷恋于自己的工作和业余爱好。
If you are crazy about someone, you are deeply in love with them.
We're crazy about each other.
我们为彼此疯狂。
Crazy is also used as a combining form with nouns, when you mean that you are very enthusiastic about something.
Sports-crazy Coloradans will buy tickets to anything.
运动狂热的科罗拉多人什么票都会买。