The F-35 will be used by the U.S.Air Force and also by the Navy to fly off of aircraft carriers.

VOA: standard.2009.07.21

We call an instrument of the U.S. Treasury with a maturity less than or equal to one year--we call that a bill and they used to be the only discount bonds issued by the U.S. Government.

我们把期限小于或等于一年的,国库券品种称为短期国库券,它们曾是美国政府,唯一发行的贴现债券

耶鲁公开课 - 金融市场课程节选

So something the Germans used on their U-boats and the output of that is a scrambled message.

德国人在他们的U型潜水艇所用到的东西的输出,是一个加密消息。

哈佛公开课 - 计算机科学课程节选