I won't be able to show you what a market does unless I have stocks, but I can look at what an individual stock does without having a market.

我不会在没有股票的时候,就给你讲股市应该是怎么样的，但是我可以在没有股市的情况下,先去看单独的股票。

麻省理工公开课 - 计算机科学及编程导论课程节选

Or did I not, you know, give you the service that you wanted?

我没有给你提供你想要的服务吗？

一定要给小费 - SpeakingMax英语口语达人

I wanted to introduce it to you so that if you don't haven't heard about this before you might want to read a little bit about this before we get to Chapter 5.

我想给你们介绍一下细胞膜,所以如果你没有,以前没听说过这个的话,也许你在学到第五章之前,要读一点关于这些的文献

耶鲁公开课 - 生物医学工程探索课程节选