It is needless to rehearse what is known to all.

这是不必要的排练是众所周知的。

youdao

Before making a telephone call, do you ever rehearse what you are going to say?

在打电话之前，你有没有排练过你想要说的话？

youdao

Before making a telephone call, do you ever rehearse what you are going to say?

在打电话之前，你有没有排练过你想要说的话？

youdao