We can learn a lesson from the story.

我们可以从这个故事中吸取教训。

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We should learn a lesson from our mistakes so as to be a better person in the future.

我们要从错误中吸取教训，以便在将来成为更好的人。

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Let's hope they learn a lesson.

希望他们能从中吸取教训。

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But in return,Heller's surfing adventure helped him learn a valuable lesson about catching the perfect wave in life.

VOA: standard.2010.08.04

There is a spiritual lesson that we can learn.

我想从中我们也能学到一些关于灵性的体验。

普林斯顿公开课 - 人性课程节选

And this is a hugely important lesson to learn.

这么问自己，这是不是一个隐藏的。

麻省理工公开课 - 计算机科学及编程导论课程节选

Facebook did seem to learn a lesson from the December 2009 privacy debacle.

FORBES: Facebook and FTC Close To Reaching A Settlement Over A 2009 Privacy Complaint

Perhaps global business and political leaders could learn a lesson or two from successful business leaders in the BRIC economies.

FORBES: QUICK REACTION - The Overdeveloped Leadership Skill

Science editor Alan Boyle's blog: Researcher Jared Diamond, the author of "The World Until Yesterday, " says Congress could learn a lesson from tribal societies: Listen to your elders.

MSN: Massive meteorite crater found in Canadian Arctic