You've worked with this already so you're a little bit familiar with it, and at the outset here I have two questions for you.

我们听过这首曲子,你们会觉得有些熟悉,开始前,我为你们准备了两个问题

耶鲁公开课 - 聆听音乐课程节选

I think most and you are familiar with the Aufbau or the building up principle, you probably have seen it quite a bit in high school, and this is the idea that we're filling up our energy states, again, which depend on both n and l, one electron at a time starting with that lowest energy and then working our way up into higher and higher orbitals.

我认为你们大多数熟悉奥弗堡,或者构建原理，你们可能,在高中见过它，又一次,这是我们填充能级的观点，与n和l有关，一个电子每次从,最低的能级开始,然后以我们的方式上升到,更高更高的轨道。

麻省理工公开课 - 化学原理课程节选