“I'll be a monkey's uncle”别理解成“我会成为猴子的叔叔”，真实含义是（表示惊讶）天哪！哎呀！我简直不敢相信！

【例句】
Well, I'll be a monkey's uncle. I never thought Bill would remarry.
天哪，我从来都没想过比尔会再婚。

I'll be a monkey's uncle. She just got accepted by Harvard University.
我简直不敢相信啊，她被哈佛大学录取了。