暗度陈仓

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❶ 比喻秘密地进行活动，例他表面上打著爱国的旗帜，其实早已暗度陈仓，与侵略者勾结上了。

On the face of things，he seemed to be patriotic，but under cover，he was actually colluding with the enemy．

❷ 或指男女间私通行为，例这一对男女表面上疏远客套，其实他们那暗度陈仓的勾当早已是众所周知了。

On the face of things，the couple pretended to be distant，but everyone knew that they were having an illicit affair．