Suppose you are moving after five years, you took out a thirty-year mortgage and you're moving after five years.

假设你已经偿还了五年贷款,你的贷款总期限是30年,你已经还了五年

耶鲁公开课 - 金融市场课程节选

That's larger than the total U.S. population.

比美国总人口数还多。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选