To keep doing sth until you have been successful.

也就是很多人都没有成功的根本原因吧。

youdao

You don't have to worry, he will make it. ( succeed in doing sth. )

你不用担心，她会办到的。

youdao

You don't have to worry, he will make it. ( succeed in doing sth. )

你不用担心，她会办到的。

youdao