You double click an icon, the program gets loaded into memory, well, conceptually where does your program end up?

双击一个图标，程序就被加载到内存中，那么，程序在哪里结束？

哈佛公开课 - 计算机科学课程节选

But once you have a double bond here, we have our pi bond, as well as our sigma bond.

但一旦你有了双键，我们有π键，也有sigma键。

麻省理工公开课 - 化学原理课程节选

Well, before I just hardcoded a string inside of printf's double quotes.

在printf的双引号之间写死一个,字符串之前。

哈佛公开课 - 计算机科学课程节选