"We have put ourselves onto a timeline. We are working it through with the Japanese but if they do not come at this agreement to zero, we will initiate that action."

VOA: standard.2010.02.20

But the important part here is that the work is not zero. You're starting at one point.

从任意一点出发,完成一个循环。

麻省理工公开课 - 热力学与动力学课程节选

But the point is, the main point is, it's not zero.

但关键是，这一项不等于零。

麻省理工公开课 - 热力学与动力学课程节选

The two analogies we use " was strengthening our immune system or stronger "psychological engine" that has the capacity to endure more not just from the negative to zero, but also from the zero to the positive.

我们使用的两个类比,是加强我们的免役系统或加强“心理引擎“,获得更强大的忍受能力,不只是从负到零，还要从零到正。

哈佛公开课 - 幸福课课程节选

A corporation is an entity that could be sued or could lose more money than it's worth, but the value of a corporation can never fall below zero to the investors because the investors are not liable for the mistakes of the corporation.

公司是一个实体,它可能被起诉,或者亏损额超过了自身的价值,但是对于投资者而言,公司的价值永远不会小于零,因为投资者对公司的过失,不负有责任

耶鲁公开课 - 金融市场课程节选

So, the dS term is zero, but the other two are not.

这时dS等于零，但是其他两个不是。

麻省理工公开课 - 热力学与动力学课程节选