She wanted to get a better picture of the city below.

VOA: special.2009.05.10

We can not do that with quantum mechanics, the more true picture is the best we can get to is talk about what the probability is of finding the electron at any given nucleus.

在量子力学里我们不这样做，我们能得到的更加真实的图像,是关于在某处,找到电子的概率。

麻省理工公开课 - 化学原理课程节选

- 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

So that's where it's easy to get lost, but let's see if these lines in the picture help us stay on track.

这就是容易迷惑的地方，下面看看,这幅图中的这些线能否帮助我们追踪。

哈佛公开课 - 计算机科学课程节选