I intentionally used this very common analogy of a stack of trays in a cafeteria.

我故意使用这个普遍的类比，就像,自助餐厅的一堆托盘。

哈佛公开课 - 计算机科学课程节选

So, an alternative to that that is incredibly common in just the programming world and in industry is to actually not write programs on your own personal computer but to actually write and run them on a server, someplace where the software is all standardized.

那么，在编程界和工业界普遍,使用的一个解决方案是,不在你自己的电脑上写程序,而是在服务器上编程运行，服务器上的软件都是标准化的。

哈佛公开课 - 计算机科学课程节选

What's the most common type of musical form in pop music?

流行音乐中最普遍使用的曲式是什么

耶鲁公开课 - 聆听音乐课程节选

But table lookup is very common.

但是查遍是普遍使用的一种方法。

麻省理工公开课 - 计算机科学及编程导论课程节选