假笑

例句：

1. 1. He gave a sham smile to the camera.
   他对着镜头假笑。
2. 2. She pretended to be asleep when she saw her parents.
   她假装睡着，看到父母时。
3. 3.The actor gave a sham laugh at the end of the show.
   演员在节目结束时假笑。