'I must be crazy,' she thought.

“我准是疯了。”她想。

《牛津词典》

She must be crazy to lend him money.

她把钱借给他，一定是疯了。

《牛津词典》

I'd rather be crazy than be the kind of person who wouldn't cry when the situation called for it, or who wouldn't let herself feel anything at all.

我宁愿自己是疯子，也不愿成为那种在情况需要时不哭泣，或者根本不让自己有任何感觉的人。

youdao

Daphne is supposed to be seen as one of those moms who mean well even if they make their kids crazy.

VOA: special.2009.05.04

Notice something about all of those figures: Shakespeare is preoccupied with figures who may or may not be crazy.

看一下这些人物：,莎士比亚专注于疯了或者没疯的人物。

耶鲁公开课 - 文学理论导论课程节选

So, could be, those are his reasons that he's not crazy because he gets all of it out.

所以，或许那些可以证明他不是个疯子，因为他已抽身于作品之外了。

印象深刻的展示会 - SpeakingMax英语口语达人

"Bob is full of insights and ideas, and I'd be crazy not to use him, "she says.

FORBES: Magazine Article

Leaving product design to others who may not share the Apple dream would be crazy.

WSJ: Thomas Hazlett: The iPhone Turns Five

They were crazy the way an animal can be crazy in a tiny cage.

NEWYORKER: The Other Place