Perhaps the most important lesson to be learned is that you simply cannot please everyone.

或许应吸取的最重要的教训是你不可能取悦每一个人。

《柯林斯英汉双解大词典》

In the 30 years since Open University was established, an important lesson has been learned by people.

在开放式大学成立后的30年里，人们得到了一条重要的经验。

youdao

The teacher, Mrs Green, decided to teach us a very important lesson.

格林老师决定给我们上一堂非常重要的课。

youdao

General Grant was beginning to learn an important lesson of the war.

VOA: special.2009.11.26

Important lesson, so that there would be some predictability in the results and I would have some, if you will, smoke test for knowing whether or not I was getting, my code seemed to be working.

这很重要，因为这样我就可以预测,结果会是多少了，如果你愿意，我们可以做烟气试验,来看我的代码是否工作正常。

麻省理工公开课 - 计算机科学及编程导论课程节选

Now, this is an important lesson in what you do in science.

现在是你们科学教育中,的重要一课。

麻省理工公开课 - 热力学与动力学课程节选

But the drink taught me an important lesson: Manhattans are not to be ordered indiscriminately.

BBC: The Manhattan mistake most people make

This is an important lesson because Obama wants to run this experiment in reverse.

FORBES: A Lesson on the Laffer Curve for Barack Obama

That may be true, but an equally important lesson for our time has been largely overlooked.

FORBES: Computing Desire