冒牌

That man is a total phony, he palms himself off as a Ph.d.

那家伙是个彻彻底底的冒,冒称是个博士。

He succeeded in his profession, but he always secretly considered himself an impostor.

在专业方面很成功，但常暗自认为是个冒。

Australia's bunyip aristocracy.

澳大利亚的冒贵族阶层。