One is building new houses, another one is building new apartment buildings that's commercial instead of-- but it's still adding to the housing stock and the third one is improvements of existing houses.

一种是新建家庭住宅,另一种是新建公寓,用于商业用途而非...,也是存量住房的一部分,第三种是现房改造

耶鲁公开课 - 金融市场课程节选

So, our two glitches we see when we go from the 2 p, or from 2 s to start filling the 2 p, and then we also get another glitch when we've half-filled the 2 p, and now we're adding and having to double up in one of those p orbitals.

因此，我们的看到的两个小偏差，一个是在开始进入，2，p，轨道，或者说在填满，2，s，轨道之后,开始填，2，p，轨道的时候出现的，另一个则是在，2，p，轨道半满之后,开始继续加电子，使得其中一个，p，轨道上的。

麻省理工公开课 - 化学原理课程节选