And the trend always is that the probability gets smaller with each of the peaks as you're drawing them.

当你画它们的时候,整体趋势总是每个峰概率越来越小。

麻省理工公开课 - 化学原理课程节选

Initially when we go to a warm place, we feel the relief and there's this spiky level of wellbeing.

刚去到一个温暖的地方，会感到放松，幸福水平高到值峰。

哈佛公开课 - 幸福课课程节选

So, for example, we have this average level, and then it can go high where we have the peak, or it can go very low. We can also discuss sound waves, so again it's just the periodic variation of some property -- in this case we're talking about density, so we have high density areas and low density areas.

例如这是平均位置，在峰的位置水位高，在谷水位低，我们也可以,讨论声波它也是某种,量的周期变化，在这里我们,讨论的是密度,我们有高密度区和低密度区。

麻省理工公开课 - 化学原理课程节选