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

你以30万的价格买入房子,然后以27万的价格卖出,27万就是你的负债数,所以你什么都没剩下

耶鲁公开课 - 金融市场课程节选

Normally, when you have a dealer, the dealer has a-- when we talk in terms of price the dealer has an ask, which is higher than the bid.

一般来讲,当你和中间商交易的时候,如果以价格形式谈论,中间商的买入价,会比卖出价高

耶鲁公开课 - 金融市场课程节选