Fannie Mae and Freddie Mac what did they do and what role did they play?

房地美和房利美,这两家公司的职能是什么？

斯坦福公开课 - 经济学课程节选

When you call Fannie Mae an Freddie Mac s the term? Explain what that means.

当您说房地美和房利美,是什么意思，能解释一下吗，what’

斯坦福公开课 - 经济学课程节选