如果她再迟到，就不等她，给她一个教训。

If she's late again, leave without her to ___teach ___her ___a ___lesson.

他并非想造成严重伤害，只是想给她一个教训。

He didn't intend to cause serious harm; he merely wanted to ___teach ___her ___a ___lesson.

管理层决定公开批评他不负责任的行为，以给他一个教训。

The management decided to publicly criticise his irresponsible behaviour to ___teach ___him ___a ___lesson.