酒店检查员巡查时必须隐瞒真实身份。

Hotel inspectors have to travel incognito.

《柯林斯英汉双解大词典》

由于他在日本是公认的最具权威的有组织犯罪团伙专家，他隐瞒了真实身份，在日本和美国都以作家和顾问的身份出现。

Considered one of the foremost experts on organized crime in Japan, he works as a writer and consultant in Japan and the United States.

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像电影《真实的谎言》中，即便是对妻子也要隐瞒身份？

Resemble the movie "true crammer" in, is even if right should the wife also conceal the identity?

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