This is an important lesson to learn.
这是我们需要学的很重要的一堂课。
It is a hard lesson to learn, but we must all learn it.
学习这一课并不容易，但却是我们所有人的必修课。
Oh, how I wish I had gone home, but I had a lesson to learn.
噢，我是多么希望回家去啊，可我人生中要吸取的一个教训就要开始了。
Because there'll be a lesson to learn in everything that happens…
每一件事情都有它值得学习思考的地方。
Lesson to learn: Use fonts carefully or you may regret the results.
教训：用字要小心，否则你会后悔的。
An important lesson to learn: if you talk about someone on the Internet, they will find out.
要学会一个重要原则：如果你在网上谈论某人，他们早晚会知道。
This is a hard life lesson to learn, but it may be the most important of all: Life can change in an instant.
这些人生课很难学习，但却是至关重要的：生活可以瞬间万变。
Almost the first lesson they learn is how to dissociate emotion from reason.
第一堂课上他们学的几乎就是如何将情感和理智分开。
In this lesson, students learn how to surf the internet safely and effectively.
在这节课中，学生们学习如何安全有效地上网。
Students learn how to fix computers in the technology lesson.
学生们在技术课上学习如何修理电脑。
Every time we fail at something, we can choose to look for the lesson we're meant to learn.
每次我们在某事上失败时，我们都可以选择从中找出应当吸取的教训。
One might suggest that modern day economists would do well to learn this lesson.
有人可能会建议当代的经济学家来学习这个课程。
It was a compulsory lesson: other friends from Sencholai also had to learn it.
课程是强制性的：其他来自Sencholai的年轻人同样都得上。
So that was a tough way to learn that lesson, but you do learn the lesson.
以这种方式吸取教训着实很痛苦，但是你必须这么做。
To the young people of China, please learn a lesson from this.
我想对中国的年轻人说，请从这件事中吸取经验教训。
Then again, even that is a worthy lesson for him to learn now.
不过即使是这样，这也是值得他现在就学会的一课。
If you fail, don't forget to learn your lesson.
如果你失败了，千万别忘了汲取教训。
You are about to learn a painful lesson-you are both very selfish people.
你要汲取惨痛的教训——你们都是非常自私的人。
There is only one lesson, from history to human human not learn anything from history.
人类从历史学到的唯一的教训，就是人类没有从历史中吸取任何教训。
Is this the lesson you had to learn?
这是你不得不要学习的一个教训吗？
Once John came to grief in this pond. Let me tell you how it was, that you may learn a lesson from his mistake.
又一次，约翰在池塘遭遇了不幸。我来告诉你是怎么样的，这样你就可以从他的过失获得教训。
This lesson we'll go on to learn about adjectives.
这节课我们将继续学习形容词的用法。
In order to learn this lesson you are lead by other people at the moment.
为了让你了解这节课，在某一时刻带领其他人们。
In order to learn this lesson you are lead by other people at the moment.
为了让你了解这节课，在某一时刻带领其他人们。
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