And in this case we're going to look at silicone, and we'll say if you can point out to me which requires the least amount of energy.

这次我们要做的是关于硅的，我们来看看大家是不是,能够为我指出那一项需要消耗的能量最少。

麻省理工公开课 - 化学原理课程节选

So, which has the smallest energy that you have to put in in order to eject this electron?

也就是，哪一项为了打出一个电子,所需要注入的能量最少？

麻省理工公开课 - 化学原理课程节选