Let's divide it up into the two sides, the work going on on the left hand side, my left hand side or your left hand side, and the work going on on the right hand side.

仅仅是功的大小而已，让我们把它分成两部分，左手边功的变化，和右手边功的变化。

麻省理工公开课 - 热力学与动力学课程节选