她自称是记者，但其实只是个骗子。

She claimed to be a journalist, but she was just a ___fraud.

我的婚姻是一场骗局，是一桩重婚案。

My marriage was a ___fraud, a case of bigamy.

那个冒充银行代表的人是个彻头彻尾的骗子，企图窃取个人信息。

The man posing as a bank representative was a complete ___fraud trying to steal personal information.