Your brain will not waste energy on language that it doesn't think is useful!

你的大脑是不会在它并不认为有用的语言上浪费能量的。

youdao

This way we won't waste our time learning something which is not useful.

这样，我们就不会浪费时间去学习那些没用的东西。

youdao

This way we won't waste our time learning something which is not useful.

这样，我们就不会浪费时间去学习那些没用的东西。

youdao