To answer this question you just really want to think about what does electron affinity means.

要想答对这个问题,你只需要好好想一想,电子亲和能的真正意义。

麻省理工公开课 - 化学原理课程节选

that, you know, you just have to figure out what neighborhood you want to go to

你只需要弄清楚你想要去哪一个区，

请记住我 - SpeakingMax英语口语达人

Well, it turns out that if you want to check two conditions and you only care that one of them is true or the other one is true.

好的，结果是如果你想要核对两个条件,你只关心其中一个是正确的,或另外一个是正确的。

哈佛公开课 - 计算机科学课程节选

So if we want to solve for ionization energy, we can just rearrange this equation.

因此，要想解出电离能，我们只需要将这个方程中的项变换一下位置。

麻省理工公开课 - 化学原理课程节选

And I'm going to get minus 2, which came from here: minus 2 and that is in fact negative, which is what I wanted to know.

最后只剩下-2了,2是一个负数,这正是我想要的

耶鲁公开课 - 博弈论课程节选

Moses enumerates additional misfortunes and sufferings that will befall Israel if she sins. But he emphasizes the choice is Israel's: God has been clear regarding what's required, and it's not beyond Israel's reach to attain life and prosperity. She needs to only choose.

摩西列举了如果以色列人犯罪，他们所面临的,不幸和惩罚但是他强调了以色列人所拥有的选择：,上帝已经申明他的要求，以色列人,想要的生命和繁荣并不是不可达到的她只需要选择。

耶鲁公开课 - 旧约导论课程节选

The problem is that if you want to do risk-sharing, you're not, ideally, sharing with someone who's just like you living in Israel, working in a certain agricultural industry-- because there are lots of risks that you've already shared.

如果你真的想要达到风险分摊的效果，理论上说，就不应该只和与你的同伴,比如同住在以色列，一样从事农业的人来分摊-,因为你们承担的许多风险是正相关的。

耶鲁公开课 - 金融市场课程节选

I actually want to change that around, if I might, and play with that, because that's a really useful image for us: "takes the mask off literature and reminds us how we come to be sympathetic or Richard Wright how we come to think something." Think back to Richard Wright, who wants words to disappear, to be completely transparent and to leave you just with your response.

实际上，我想要改变一点，可能的话，玩弄一下，因为那对我们是很有用的画面：,把文学的面具卸下,我们是如何同情,或思考事物的，回想一下，他希望文字消失，而变成透明的，只剩下你们的回应。

耶鲁公开课 - 1945年后的美国小说课程节选

So if we consider lithium, potassium, and sodium, they're all together in the same group on the periodic table, knowing what we do about biology we can immediately think of sodium and potassium, or even just knowing what you know about table salt, for example, that these are two elements that we find, and particularly in the ion form in very high concentrations in our body.

我们来考虑一下锂，钾和钠，它们都在周期表中的同一族里，想要知道我们将元素周期律,用到生物学会怎么样，我们首先想到的就是钠和钾，甚至只需要知道食盐，我们发现它们是以很高浓度的离子形式,存在于我们体内的两种元素。

麻省理工公开课 - 化学原理课程节选