L-2:laugh in someone's face 奚落
A:Look what you did. It's so funny.
A:看你做的好事,太好笑了。
B:Tom, never laugh in another's face, it's very impolite.
B:汤姆,不要在众人面前奚落别人,那是非常不礼貌的。
A:Mom, I know that. I'll never do it again.
A:妈妈,我知道了,我再不会那么做了。
B:Good boy.
B:好孩子。