The U.S. Government also issues small denomination debt to individuals to help them called savings bonds, but we aren't talking about those.

美国政府也发行小面值债券,用于面向个人,叫做长期储蓄债券,我们今天不涉及这些

耶鲁公开课 - 金融市场课程节选

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