The current boom is different because there's nothing like that happening and so it's strange.

而眼前的繁荣是不同的,因为并没有那样的事情发生,所以有些奇怪

耶鲁公开课 - 金融市场课程节选

There's nothing to do here, because the forces are 0, the mass is 0.

就不用管这里了,因为这里的力是 0,质量也是 0

耶鲁公开课 - 基础物理课程节选

And what we find, the first example of a Bronze Age-- and I use the word civilization now for the first time, because before the Bronze Age-- there is nothing that we would define as civilization.

我们发现的第一个文明出现在青铜时代,也是我第一次用文明这个词,因为在青铜时代之前,没有任何东西能称之为文明

耶鲁公开课 - 古希腊历史简介课程节选

So a loop or an infinite loop, because true is always true, there is no-- nothing on the screen that seems to change this keyword true, so this is actually a deliberate infinite loop, but so was that thing up top to forever say hi or whatever it is you wanted to do.

因此而出现死循环，屏幕上的这些语句无论怎么运行,都无法改变它为真的事实，这就是所谓的死循环，无论你想不想要,屏幕上都会不断打印出“hi“

哈佛公开课 - 计算机科学课程节选