... be a lesson to someone对某人是一个教训 give lesson in 教授…课程 give someone a lesson [亦作 give a lesson to someone ]教训某人，申斥某人 ...
双语例句
1
“He just says it, without pretending tobesomeone else. I think that’s a good lesson he teaches us,” Parson said.
帕森斯说： “谢耳朵心直口快，不喜欢伪装，我想这就是他教给我们的最好一课。”
2
Love is always a long lesson on how tobe with someone, or how to break up.
爱恋是关于如何相处和如何分离的漫长的课程。
3
A long distance romance may be deceiving. You are best to control the situation so you aren't stuck spending time with someone who disappoints you. There's alessontobe learnt.