The U.S. Government also issues small denomination debt to individuals to help them called savings bonds, but we aren't talking about those.

美国政府也发行小面值债券,用于面向个人,叫做长期储蓄债券,我们今天不涉及这些

耶鲁公开课 - 金融市场课程节选

Then you want to add the present value of the principal and that's the formula.

最后还要加上债券面值的现值,这就是债券定价公式

耶鲁公开课 - 金融市场课程节选

Lots and lots of loans, the securities that people bought at par that were worth about somewhere between zero and $.15 or $.20 and now trade there.

市场上充斥着越来越多的贷款，人们按照面值购买的债券,真正的价值只有大概,0到0。15或者0。20美元0,而它们就这样进行交易。

耶鲁公开课 - 金融市场课程节选

Remember, I said I'm doing this because I expect to have a hundred pounds-- I said one dollar-- I'm going to have to pay out a hundred pounds because this one-period bond, worth one hundred pounds principal, is coming due so I have to pay it out.

回想一下,我说过我会这么做,是因为我会得到一百英镑,我口误说成了一美元,我将要偿还的数额是一百英镑,因为这张一年期,一百英镑面值的债券即将到期,于是我不得不将其支付

耶鲁公开课 - 金融市场课程节选