教训的英文：
teach someone or learn a lesson

参考例句：

Let him cool his heels for a while : that' ll teach him to be impolite
让他等一会儿吧,好教训教训

Experience teaches
经验给人教训

A salutary experience [lesson]
有益的经验[教训]

I'll brand the lesson on my mind.
我将牢记这个教训。

No man learns but by pain or shame.
不经痛苦羞辱难以取得教训。

The teacher had a stick for any of us who got out of line and discipline.
老师有一枝教训我们犯规的棍子。

Lessons from Ebola Hemorrhagic Fever Epidemics
从埃博拉出血热流行病吸取的教训

One lesson is similar to that taught by experiences with Venezuelan equine encephalitis.
其中有一个教训是和委内瑞拉马脑炎疫情得到的教训类似。

The accident is a salutary lesson;I'll never drink and drive again.
这一事故是一个有益的教训;我再也不酒後开车了。

The accident was a salutary experience. I'll never drink and drive again.
那次意外是个有益的教训，我再也不酒后驾车了。

teach是什么意思：
v. 教，教会，教导，教授，训练

Experience teaches
经验给人教训

Implement affective teaching to improve English teaching quality.
实施英语情感教育提高英语教学质量。

Can you teach me the drill?
你能教我正确的作法吗？

someone是什么意思：
pron. 有人，某人
n. 重要人物，有名气的人

Someone has tampered with the accounts of the company.
有人篡改了公司的账目。

Someone has tampered with the electrical circuits.
有人乱动过电路。

Someone left this for you.
有人把这留给你。

learn是什么意思：
v. 学习；认识到；记住；获悉；教训

Live to learn and learn to live
生而学之,学而生之

Learn not and know not
不学无术

There is no shortcut to learning.
学问无捷径。