And actually, a question that might come up, I just explained, the sodium channel, you might say, well, how do potassium channels work then, because I can understand how you can filter something big out, but how do you filter out something small.

实际上，可能大家会问一个问题，我刚解释过，钠离子通道，你可以说，好吧，那么钾离子通道该如何起作用呢，因为我可以理解你是如何把大东西过滤掉的，但是你如何把小东西过滤掉呢？

麻省理工公开课 - 化学原理课程节选

If there's no heat flow between the b and c, then I can say all right, a and c were the same temperature.

如果在与之间没有热量流动，那么我就可以说，好吧与处于相同的温度。

麻省理工公开课 - 热力学与动力学课程节选

But in particular, it's going to use self to refer to that instance.

好，那么让我换种，稍微不同的说法吧,我有一个类的定义。

麻省理工公开课 - 计算机科学及编程导论课程节选