在我们定价之前，我们的了解你们将收取多少服务费用。

Before fixing our prices, we have to know what your service charges will be.

youdao

我不知道在座的青年朋友有多少人去过中国，了解中国。 但我相信，无论是谁，中国对你们而言都是一个既熟悉又陌生的国家。

I'm not sure how much you know about China and how many of you have been to China, but I believe that for most people in Europe, China is both well-known and little-known.

youdao

这是你们在斯洛伐克的第一场演出，你们对我们国家了解多少呢？

It's your first show in Slovakia. Do you know something about our country?

youdao

I don't know how much you've seen, but quite often the way you learned physics earlier on in high school is probably different from the way professional physicists think about it.

我不知道你们对物理有多少了解,但你们以前在高中所学的物理知识,和资深物理学家们的看法,常常是很不一样的

耶鲁公开课 - 基础物理课程节选