伪装成

• in the disguise of
• under the disguise of

例句

1. 那女间谍伪装成顾问工程师。
   The spy's cover was that she was a consultant engineer.
2. 他是个伪装成朋友的敌人。
   He is an enemy in the likeness of a friend.
3. 他伪装成海员到处流窜。
   He went about in the disguise of a sailor.