He has two electrons here with the same set of quantum numbers. B but these are two separate hydrogen atoms.

因为我写了两个量子数,一样的电子,但这是在两个不同原子中啊。

麻省理工公开课 - 固态化学导论课程节选

int A Well, one, function has called swap, takes one int called A, printf followed by another int called B, and as we've seen with print F, if you have multiple arguments, you separate them by commas.

好的，函数叫做swap，一个参数是，另一个参数是int，B，我们看到的,如果你有好几个参数，把它们用逗号分开。

哈佛公开课 - 计算机科学课程节选

Maybe we should say, the mere fact that it's possible for A and B to be separate--for A to exist without B for example, that's clearly where they're separate-- the mere fact that it's possible for them to be separate doesn't mean that in the actual world they are separate.

也许我们应该说,A和B有可能不同,比如 可能A存在,而B不存在,这是它们明显的不同之处,它们有可能不同,并不意味着,在现实世界它们也是不同的

耶鲁公开课 - 死亡课程节选