So, let's just take a quick example to show how not completely you can use these periodic trends, that there are limits.

那么，让我们举一个小例子来看一下,你是如何不能将元素周期律用在所有地方的，它是有局限性的。

麻省理工公开课 - 化学原理课程节选

because it really lets you see how all these subjects are like, are like related to each other

因为它能让你发现这些学科是如何相互联系的，

与教授的面谈 - SpeakingMax英语口语达人

Similarly, although I'm not going to ask you in your discussion sections to hide your religious views, you'll be asked in the course of defending them, to give reasons that would make sense to all of us.

同样地，即使我没有在,你讨论的部分提问，隐瞒你的宗教观点，你也会在这个课程中被问到,要如何支持你的观点，说出原因，让我们所有人理解。

耶鲁公开课 - 死亡课程节选

Now, here's another document that you want to be aware of that gives you some idea of what the Greeks fairly early thought the polis was for and about, and what the relationship between individual and polis was.

现在,这有另一份你们应该注意的材料,它能让你了解一些早期希腊人,是如何认识城邦的作用和本质,以及个人与城邦之间的关系的

耶鲁公开课 - 古希腊历史简介课程节选

if you don't want to use that, you can also derive it as we did every time, it should intuitively make sense how we got there. But the exams are pretty short, so we don't want you doing that every time, so we'll save the 2 minutes and give you the equations directly, but it's still important to know how to use them.

吸收的和发射的，如果你不想用公式,你也可以每次都向我们这样推导它,很直观的就能得到结果，但考试时间很短，我们不希望你们每次都推导,所以我们会直告诉你，让你节省2分钟，但知道如何应用它十分重要。

麻省理工公开课 - 化学原理课程节选