The stuff that people tend to add sometimes is to keep drawing the 10 Newtons that's acting on that.

有人经常凭空添加的力,总是把这个 10 牛的力硬加在这个物体上

耶鲁公开课 - 基础物理课程节选

So any time that you're drawing these molecular orbital diagrams you want to keep in mind that the number of electrons that you have in atomic orbitals, you need to add those together and put that many electrons into your molecule.

任何时候当你们画分子轨道图时,你们要记住,原子轨道里的电子数，你要把它们加在一起,并放到分子轨道里去。

麻省理工公开课 - 化学原理课程节选