你花30万美元买了房子，然后以27万美元卖掉它，而那就是你的负债数，所以你什么都没剩下。

You bought the house for $300,000, then you sell it for $270,000, and that's exactly what you owe, so you have nothing left.

youdao

你为什么认为我们会卖掉房子？

What makes you suppose we're going to sell the house?

youdao

但是如果我们卖掉英镑，又该买什么呢？

But if you sell the pound, what will you buy?

youdao