When you first bought the house they told you what the mortgage payment was and they're fixing that forever, well for thirty years.

最初你买这套房子的时候,他们已经告诉你每月偿还额是多少,在未来30年里这是固定的

耶鲁公开课 - 金融市场课程节选

What is the present value of that? Well, the first-- each payment we'll call a coupon-- so it pays one pound one year from now.

那么它的现值又是多少呢,首先,每一次支付的数额称为一个券息,从现在开始每一年都要支付一英镑

耶鲁公开课 - 金融市场课程节选

When you first buy a house most of your payment is going to interest.

在贷款的初期,你偿还的主要是利息

耶鲁公开课 - 金融市场课程节选