So if we have a negative change in energy for any reaction as it's written, what that actually means is we're giving off energy as the reaction proceeds.

如果我们像这里写的这样,在任何一个反应过后，得，到的能量变化为负值,这就意味着我们在这个过程中放出了能量。

麻省理工公开课 - 化学原理课程节选

If it's positive, it means you've stretched it, if it's negative, it means compressed.

如果它为正值,就说明弹簧被拉伸了,如果它为负值,就说明弹簧被压缩了

耶鲁公开课 - 基础物理课程节选

So what we are doing: we cultivate the positive; we are strengthening our,metaphorically speaking, " psychological "engine"; and we are better able to deal with the negative to zero, not to mention the fact that we are also able to become happier.

所以我们在做的是，培养积极性;,按那个比喻来说，我们正在增强，心理“引擎;,我们能够更好将负值转化为零，更别说还能变得更快乐。

哈佛公开课 - 幸福课课程节选