假勇气

例句：

1. 1. He pretended to be brave when he was really scared.
   他假装勇敢，其实很害怕。
2. 2. She has a lot of false courage, but she's not really strong.
   她有很多虚假的勇气，但她并不真正坚强。
3. 3. The leader showed no real courage in the face of danger.
   在危险面前，这位领导者没有展现出真正的勇气。