On Wednesday, China's Dagong credit rating agency downgraded American debt.

VOA: special.2011.08.05

The first rating agency in the world was created by Mr. John Moody, in the U.S. In 1909.

世界上第一家信用评级机构,是约翰·穆迪先生,于1909年在美国创办的

耶鲁公开课 - 金融市场课程节选

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

However,concerns about the stability of Greece , and other financially-troubled European countries, increased after the Standard and Poor's credit rating agency downgraded Greek bonds to speculative or "junk" status Tuesday.

VOA: standard.2010.04.28