I don't know what percent; our oil reserves in the U.S. are pretty small, so we're kind of lying somewhere inside-- maybe on this pink line.

我不知道具体占百分之几;,美国的石油储备量是微不足道的，所以我们可能是位于这附近-,也许在这条粉线上面。

耶鲁公开课 - 金融市场课程节选

A few percent is typical, okay.

总能量的很小一部分，典型值是百分之几。

麻省理工公开课 - 热力学与动力学课程节选