Those are the two biggest rating agencies in the U.S. today and they're extremely powerful organizations because they --Standard & Poor's also does letter grades, a slightly different system, but almost the same.

如今他们是美国最大的两家评级机构,而且他们是非常权威的组织,标准普尔也进行字母评级,体系上有些区别,但基本相同

耶鲁公开课 - 金融市场课程节选

I can get better grades and you know, better average rather than going different uni, so.

我可以得到更好的成绩，中等偏上，比去其他大学要好。

研究生院也在这里 - SpeakingMax英语口语达人

The idea was that the --so he set up Moody's Rating Agency and the job of Moody's was to give letter grades to securities; it was a little bit like a bank, but it was different because he didn't actually make the loans.

主旨是... 因此他成立了穆迪评级机构,穆迪的工作就是用字母给证券评级,这有点像银行,但还是有区别,因为他并不发放贷款

耶鲁公开课 - 金融市场课程节选