So when I said earlier that as soon as swap returns, all of the memory allocated for swap is now useless.

我前面指明的，一旦swap返回，所有为swap分配的内存都是无用的了。

哈佛公开课 - 计算机科学课程节选

So the heap is a chunk of memory in a computer's RAM that's conceptually allocated to what's called dynamic memory allocation.

堆是在计算机RAM中的一块内存,它可以进行,动态内存分配。

哈佛公开课 - 计算机科学课程节选