The return, of course, in any given time period is the percentage increase in the portfolio; or, it could be a negative number, it could be a decrease.

当然了，收益率是一定时间内,投资组合的增长率;,也可能是一个负数，表示负增长。

耶鲁公开课 - 金融市场课程节选

So would you expect, therefore, as we go across a row for the atomic radius, to increase or to decrease? Good. OK, yes.

那么大家觉得，原子半径沿着某一行向右走，是会增大还是会减小呢？很好，不错，是的。

麻省理工公开课 - 化学原理课程节选

I have got to put that in because that is a repulsive energy and that is going to decrease the energy of the system.

我必须要说清楚,因为这是一个排斥能,这将要减少这一系统的能量。

麻省理工公开课 - 固态化学导论课程节选

Not only are we taking away an electron here, but we're also going to decrease shielding, so the electrons that are already in there are going to feel a higher z effective and will be pulling and the atom will be getting smaller.

这不只是因为我们拿走了一个电子，还因为我们这样做会减小屏蔽效应，这样留下的电子,将会感受到更大的有效核电量,也就会感受到更强的吸引力，使得原子变得更小。

麻省理工公开课 - 化学原理课程节选

So, as we go down a column, we see ionization energy's going to decrease.

总之，当我们沿着列往下走的时候，我们会看到电离能在降低。

麻省理工公开课 - 化学原理课程节选

So, I've got ion pair formation, and I've got a huge decrease in energy because a donor is able to express that urge, an acceptor is able to express that urge.

所以我能得到形成的电子对，同时能量也大幅下降,因为失电子方要表达它的迫切，得电子方也要表达它的迫切。

麻省理工公开课 - 固态化学导论课程节选