- And we can think about why -- essentially we have fluorine and now we're adding another electron. So you can picture that fluorine is going to get larger in this case And that would be true for all of the negatively charged ions.

我们可以想一想这是为什么-,本质上来讲我们现在给氟原子加上了,另外一个电子,因此大家可以想象在这种情况下氟将变大,而且这对于其它负离子也是成立的。

麻省理工公开课 - 化学原理课程节选

Think of anything else with the density goes down when it freezes, and think about where we would be if that wasn't the case.

想想有没有其他的物质,在降温时密度会变大，再想想如果不是这种情况,我们将会怎么样。

麻省理工公开课 - 固态化学导论课程节选

And you can imagine this gets complex and there's lots of interesting things to do to look to the real form, but those are the things that you should see.

可以想象下这样下去问题会变的复杂起来,而且当面对真实情况的时候,会有很多有趣的事情发生，但是这些东西你都应该明白的。

麻省理工公开课 - 计算机科学及编程导论课程节选

We want to do that in the simplest context, then we can make the example more and more complicated, but the phenomenon will be the same.

我们想举一个最简单的情景,随后我们可以再看一下更复杂的情况,但是万变不离其宗

耶鲁公开课 - 基础物理课程节选

Natural right is mutable because different circumstances will require different kinds of decisions. So does this mean then that for Aristotle there are no universally valid ? standards of justice or right?

自然权利是易变的，因为不同的情况,将需要不同种的决策,这是否就意谓着亚里士多德,认为没有寰宇合法的,正义与权利标准？

耶鲁公开课 - 政治哲学导论课程节选

b OK. In this example I'd use b. All right, as b get-- b is the thing that's changing as I go along here, but it could be things like, how many elements are there in a list if the input is a list, could be how many digits are there in a string if the input's a string, it could be the size of the integer as we go along. All right.?

好，在这个例子里我会用，因为b是一直在变的东西,但是也可能是如下情况：,如果输入是数组的话,变化的就是数组的元素数，如果输入是字符串的话,变化的就是字符串的长度，如果是integer的话,可能就是这个数的大小，对不对？

麻省理工公开课 - 计算机科学及编程导论课程节选