No wonder our bus driver is mumbling to himself.

难怪我们的公车司机一直喃喃自语。

youdao

You'll have to speak up, young man; there's no use mumbling. '.

你应当说大声点，年轻人，喃喃低语是没用的。

youdao

You'll have to speak up, young man; there's no use mumbling. '.

你应当说大声点，年轻人，喃喃低语是没用的。

youdao