"Testing them with water. Then we are going to put them back on the shelf again and fill them with rum."

VOA: standard.2010.06.01

So again, we can fill in our atomic orbitals here, there's going to be two electrons in each of our atomic orbitals.

同样的，我们可以填充原子轨道，每个原子轨道上有两个电子。

麻省理工公开课 - 化学原理课程节选