That is the great lesson I learned in my childhood, in the backyard of a lonely house.

就在那个寂静的后院，我学到了童年时光里最宝贵的一课。

youdao

A case in point is that the world community learned the great lesson from World War II that there must not be another world war, thus we entered into 40 plus years of the "cold war".

一个典型的例子就是：国际社会都从二战的惨痛经验中明白绝不能再有下一次世界大战了。因而，我们进入了四十多年的冷战时期。

youdao

To be honest, the first lesson was not a great success.

老实说，第一节课并不是很成功。

youdao

The great lesson of the Basques is that if you preserve your culture, you are a people.

FORBES: The wealth of a nation

The crucial importance of keeping up research and development in defense is the great lesson of SDI.

CENTERFORSECURITYPOLICY: Center For Security Policy

The crucial importance of keeping up research and development in defence is the great lesson of SDI.

CENTERFORSECURITYPOLICY: 'Courage'