The first amendment to the United States Constitution reads Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof The idea is to keep governmental powers independent from private religious beliefs.

VOA: special.2010.03.05

But I was working on research involving detection of worms, viruses and the spread thereof.

但我从事的研究涉及到蠕虫的检测，病毒及其传播。

哈佛公开课 - 计算机科学课程节选

There are a lot of ways in which a red light means neither "stop" nor "go," but we are sort of confining ourselves so far to the ways in which a red light has something to do with locomotion or the lack thereof.

很多时候红灯既不表示停,也不表示走“,但是我们却惯性的认为,红灯就是提示开始或者停止移动。

耶鲁公开课 - 文学理论导论课程节选

Now, in the world of Linux and Unix more generally, both of which are our operating systems that had been around for many, many years, Mac OS is based on one of-- one version thereof.

在Linux和Unix里更广泛，对了，这两个都是历史悠久的,操作系统，就连Mac操作系统,都是基于它的一个版本设计出来的。

哈佛公开课 - 计算机科学课程节选