他这才知道锻炼身体的好处。

Only now does he see the good of taking exercise.

《新英汉大辞典》

玛拿西这才知道惟独耶和华是神。

Then Manasseh knew that the Lord is God.

youdao

玛拿西这才知道惟独耶和华是神。

Then Manasseh knew that the LORD he was God.

youdao

It wasn't until the 20th century, so almost 200 years later, that we learned how to do this.

在詹纳研制出天花疫苗二百多年后,直到二十世纪,我们才知道如何做到这一点

耶鲁公开课 - 生物医学工程探索课程节选

which I don't know if it's a talent. But, if people enjoy it...

我不知道这算不算有才。但是，如果人们喜欢这个……

英国的真人秀 - SpeakingMax英语口语达人

Coulomb discovered the Coulomb's law, which is a repulsion between charges.

后来库仑发现了库仑定律,才知道这是电荷之间的排斥作用

耶鲁公开课 - 基础物理课程节选