"When you can't say for sure whether all the women in the advance provision group actually used the medication, then you're kind of looking at population level effect of a strategy, not the individual effect of a medication."

VOA: standard.2010.03.22

So hopefully you're convinced that your predictions worked well and you are able to predict what's going on when you're looking at the photoelectric effect.

希望你们确信,你们的预测都是对的,而且当你们考虑光电效应的问题时,你们可以预测。

麻省理工公开课 - 化学原理课程节选

So, one difference between photoelectron spectroscopy and, for example, the photoelectric effect is that in this case, we're not just looking at one energy level, which is what we were looking at from the surface of a metal, now we're talking about this gaseous atom.

光电子能谱与光电效应的不同点在于，以这种情况为例，我们不只关心一个能级，就像原来在金属表面那样，现在我们研究的是气体原子，所以，我们可以从原子中。

麻省理工公开课 - 化学原理课程节选

So we get this scissors effect of looking at it this way.

最后会导致了剪刀效应

耶鲁公开课 - 博弈论课程节选