我可以告诉我的朋友我世界上最大的其中一个公司工作。

I could brag to my friends that I worked for one of the biggest companies in the world.

youdao

由于该公司原是由4家公司合并而成，因此每一环都是其中一个公司的象征。

Since the company was originally formed by the merger of four companies, so each ring is a symbol of the company.

youdao

我的意思是，其中一个公司可能对另一个公司说，“让我们在这个合同上合作吧。”

What I mean is that one company might say to another company, "Lets partner on this contract."

youdao

But in many cases firms do a mixture of different activities one of which is investment banking.

但是大部分情况下，公司做各种各样的业务,其中一个就是银行投资业务。

耶鲁公开课 - 金融市场课程节选