imposter
n. 骗子；冒名顶替者
例句
He was an imposter who masqueraded as a doctor.
他是位冒牌医生。
《柯林斯英汉双解大词典》
Righty is an imposter.
小右是冒名顶替的。
The representative of register.com then sent the imposter a security code that he had to provide.
的人员随后请冒名顶替者提供所需的安全码。
