If it's not obvious, I think this is the kind of thing you should fill in the blanks when you go home.

如果不能一眼看明白,我觉得这就是,应该在课下查漏补缺的地方

耶鲁公开课 - 基础物理课程节选

So the Hund's Rule is telling us to put the two electrons in separate orbitals unpaired as opposed to we should not put them in like this, like some librarian might want to fill nicely from left to right, up and down.

所以洪特定律告诉我们,要把这两个电子放在独立的轨道中,而不是像我们常做的那样，像一些图书管理员想要,把书从左到右，从上到下放得很好。

麻省理工公开课 - 固态化学导论课程节选