We're going to find other properties that do care about the history of the system like work, that you put in the system, or heat that you put in the system, or some other variables But you can't use those to define the equilibrium state.

我们还会发现其他一些,与系统的历史有关的性质,比如你对系统做的功，或者你向系统传递的热量，或其他的变量,但你不能用它们,来定义平衡态。

麻省理工公开课 - 热力学与动力学课程节选

The "let's" pattern is a great pattern that you really should memorize and put to use often if you don't already.

et's句型是一个非常棒的句型，你需要尽量记住它并且多多活用。

Let's 课堂 - SpeakingMax英语口语达人

I think that if Ford and other car companies didn't use cost-benefit analysis, they'd eventually go out of business because they wouldn't be able to be profitable and millions of people wouldn't be able to use their cars to get to jobs, to put food on the table, to feed their children.

我觉得要是福特和其他汽车公司,不使用成本效益分析的话，他们最后就会倒闭,因为他们无法盈利,这样就会有数百万人无法开车上班，没法赚钱，养不起小孩。

耶鲁公开课 - 公正课程节选