假面具

例句：

1. 1. He put on a mask to hide his identity.
   他戴上面具以隐藏自己的身份。
2. 2. The actor wore a mask during the performance.
   演员在表演时戴了面具。
3. 3. She used a mask to conceal her identity.
   她用面具来掩盖自己的真实身份。