John, let me give you one more, one other statistic During the last 7 years, the Bush presidency household debt has almost tripled.

约翰，我再给你一项数据,布什上台后的这7年里,家庭债务翻了三番。

斯坦福公开课 - 经济学课程节选

they're having their rents, commercial rents tripled, not even doubled.

他们要付租金，商品房租金翻了三倍，而不只是两倍。

纽约的负面变化 - SpeakingMax英语口语达人

Its per capita income triples since 2001.

从2001到现在它的人均收入翻了三倍。

普林斯顿公开课 - 国际座谈会课程节选