So people change-- up or down in their level of happiness is a result of their experiences.

人们的快乐水平会上下变化,这是他们的经验之谈。

哈佛公开课 - 幸福课课程节选

It looks at things like fashion, how people wear different clothes.

它展示了很多的东西，比如时尚的更迭，人们服饰的变化。

一眼看历史 - SpeakingMax英语口语达人

Another way to explore what the brain does is to consider what happens to people when very bad things happen to their brain.

另一个探究大脑功能的方法,就是在人们的大脑遭受严重损伤时,观察他们的行为变化

耶鲁公开课 - 心理学导论课程节选

So you can see the kind of patterns, the variability from day to day that people get.

因此你们可以看到人们每天摄入量的变化

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

One of the other things that happened during the twentieth century is that human life expectancy increased dramatically, people started living a lot longer.

在二十世纪发生的另一大变化是,人类的寿命预期显著增长了,人们活的更久了

耶鲁公开课 - 生物医学工程探索课程节选

It's one of the most rapidly changing, hard to keep up with areas because someone can set up an electronic exchange overnight and suddenly become a base for trading trillions of dollars of securities.

经纪业是一个变化最快的行业之一,人们很难跟上它的步伐,因为人们可以在头一天晚上,设置一个电子交易,一夜之间,他就能在证券市场赚到千亿美金

耶鲁公开课 - 金融市场课程节选

Fat is not all that much different, but one thing that's happened is the type of fat has changed a lot, and so people are eating less fat from plant sources and more fat from animals sources That's where the saturated fat comes in and high saturated fat intake is not a good thing.

脂肪摄入量相差无几,然而脂肪的种类却发生了很大变化,人们越来越少从植物中摄取脂肪,而更多是从肉类食物中获得,肉类食物中含有饱和脂肪酸,而过多地摄入饱和脂肪酸是有害的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

I did it myself using my data, but it would always look more or less like this-- slightly different positions if people use different estimates.

这幅图是我根据自己的数据画出来的，有效边界的图形大致就是如此-,随着人们采用不同的估计值,其位置会发生微小的变化。

耶鲁公开课 - 金融市场课程节选