短语 a big fish in a small pond 的直译是“一个小池塘里的大鱼”，实际表达的意思是一个小公司或小地方的大人物。

例句

Paul is a manager of a small company; he likes to be a big fish in a small pond.

Jane might think she has power but she's just a big fish in a small pond.

请注意

我们用短语 a cold fish 来形容那些不友好、态度冷冰冰的人。

Julie's a cold fish; she never speaks to anyone in the office.