Think of heat as an actual quantity of stuff.

如果把热量当作一个有重量的物体。

If you look at this, you still can click through it and sort of modify the actual quantities.

看一下这个界面，你还是可以点上去，修改实际数量。

Think of heat as an actual quantity of stuff: . The more you give away, the colder you feel.

如果把热量当作一个有重量的物体，散失的热量越多，你就会感觉越冷。