All right so it has to live in RAM as opposed to the hard drive because otherwise things would be terribly slow as you know so it's much better if your programs live while they're running in RAM and they end up in what's called the tech segment.

好的，它存在内存中，而不是硬盘中,因为，否则程序会非常的缓慢,程序在内存中运行会好得多,它们在技术段,的地方结束。

哈佛公开课 - 计算机科学课程节选

So pictorially, you can imagine foo getting called and then it finishes running; so these rows in this chart will just be whisked away.

看起来，你可以想象foo被调用,然后它结束运行，所以这个图表中的这些行,将被快速移去。

哈佛公开课 - 计算机科学课程节选