teach a lesson

基本解释

Let’s pretend a teacher needs to teach a lesson about the law of supply and demand.
假想有一位将教授学生关于供给与需求规律课程的老师。
This is not to say that Tim’s walking is some clunky metaphor. Mr Ferris is wise enough not to teach a lesson.
这并不是说缇姆的行路癖是一个拙劣的隐喻，菲尔斯先生有足够的智慧使他的作品不流于说教。
Mr Ferris is wise enough not to teach a lesson. Rather, he has teased ordinary circumstances into something extraordinary, which is exactly what we want our fiction writers to do.
费里斯先生很明智，他没有在小说里进行说教，而是通过戏谑的方式将人生中的寻常境况变得不同寻常，而这正是我们希望小说家们都去做的。

With schools closed for a holiday, some parents took the opportunity to teach their children a lesson in charity.

Mr Ferris is wise enough not to teach a lesson.
ECONOMIST: New fiction 1
So you can see why that would be kind of waving a red flag in front of the military and why they might, as you point out, want to teach a lesson of their own.
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This is a parenting opportunity - and while I disagree with the father in my first link that chose to use a pistol to teach a lesson, violence generally begets violence, he is clearly trying to convey the concept of consequence.
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