foolish名词：fool

n.蠢人;傻瓜;(旧时国王或王后豢养供人娱乐的)小丑，弄臣;奶油果泥，蛋奶果泥(甜食)

例句：

I'll pay him back for making me look like a fool in front of everyone.

他让我当众出丑，我非治治他不可。

He told me he was an actor and I was fool enough to believe him.

他告诉我他是演员，而我真傻，竟相信了他的话。

She'd be a fool to accept it.

她倘若接受，那她就是个傻瓜。