And the interesting thing is, I think you can see-- you can get a feel for both possible answers here.

有趣的是，我想你会发现-,你觉得两种答案都有可能。

耶鲁公开课 - 死亡课程节选

But what you should be able to do is take a look at a list of answers for what we're saying z effective might be, and determining which ones are possible versus which ones are not possible.

但是你们应该能够做到的,是看一下这个可能的,有效电荷量的答案列表，并且确定哪些是可能的,哪些是不可能的。

麻省理工公开课 - 化学原理课程节选