affected laugh

例句：

1. 1. When she saw the movie, she couldn't help but affected a laugh.
   当她看到这部电影时，她忍不住笑了。
2. 2.He had an affected laugh when he spoke about his childhood.
   他谈到他的童年时，露出了一种不自然的笑容。
3. 3.The comedian had an affected laugh that made everyone in the room laugh too.
   这位喜剧演员的笑声让整个房间的人都笑了起来。