The central bank said it would buy up to an additional seven hundred fifty billion dollars in mortgage-related securities.

VOA: special.2009.03.20

You go to a bank and say, I want to borrow to refinance my mortgage, which is due now.

你去跟银行讲,由于现在的处境,我想再申请已到期的抵押贷款

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But the bank would say, hey you're unemployed; we can't give you a mortgage.

但银行会说,你失业了,所以我们不能给你办贷款

耶鲁公开课 - 金融市场课程节选

The central bank also announced that it would purchase up to $750 billion of additional mortgage-backed securities, which lost value with the collapse of the U.S.housing market.

VOA: standard.2009.03.18

so ta retail bank sells the mortgage and then the retail banks flips it to Fannie Mae and Freddie Mac which essentially package huge numbers of the mortgages across the countries.

所以商业零售银行发行贷款，they…,然后商业零售银行将贷款转手,卖给房地美和房利美,事实上是收集了,大量的,全国的房贷。

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