如果我们有一个系统，它在环境中。

If we say we have a system, and it's in its surroundings.

youdao

我们有两个电机，每个后轮一个，因此控制系统必须独立控制每个电机。

We have two motors, one on each rear wheel, so the control system has to control each motor independently.

youdao

有一点非常重要，即我们要把它视为一个完整的系统，而不只是一堆独立组件的总和。

It's extremely important for us to think about this as a whole system and not just the sum of a bunch of individual components.

youdao

OK, clearly we'd be much better off if we had some systematic quantitative way to tell whether something would happen spontaneously.

好，如果我们有一些系统定量的方法来判断,一个过程是否会自发进行,那就会更好了。

麻省理工公开课 - 热力学与动力学课程节选

You have to have a good public transportation system when you have as many people here as we do.

如果你那儿和我们这儿的人一样多，你们得有一个良好的公共交通系统。

纽约的交通手段 - SpeakingMax英语口语达人

So we have system insulated from the outside world, and we have two bulbs.

我们有一个与环境隔绝的系统，和两个腔体。

麻省理工公开课 - 热力学与动力学课程节选