但是非洲已经开始——尽管有些晚——其他地方已经经历过的人口转型：当人们越来越富有，他们的孩子就越少。

Yet Africa is also starting out, a little late, on a demographic transition that others have already traced: as people get richer, they have fewer children.

youdao

慢慢地我也喜欢上了桑拿的蒸汽，但尽管从那以后我又去了几次芬兰，也越来越喜欢那里，却从没泡过那洞里的冰水。

In time I came to enjoy the hot steam of the sauna, but despite my growing love for Finland during several trips since, I could never get into the ice water.

youdao

在我的发现专栏里，我曾经解释过研究者们是如何发现“越富有越环保”理论，即就长期而言，人们越富有则会越环保。

In my Findings column, I explain how researchers have discovered that, over the long term, being richer often translates into being greener.

youdao

I remember walking around the square during mu lunch hour, walking faster and faster trying to get around, four or five different classes of kids, all of whom were verbally abusive to me, and feeling there was no place that I belong there was no place that I felt connected to other kids.

我记得我在广场周围走着,那会儿正是午餐时间，我越走越快,想翘过接下来的四五个不同的班级,班上的孩子都对我恶言相向过，我觉得自己无处可去,我找不到自己和其他孩子相联系的地方。

麻省理工公开课 - 媒体、教育、市场课程节选

If you think about it like a rubber band, maybe the more we can stretch the rubber band the better; but if you stretch too far and the rubber band snaps, that's not good, that's bad.

你可以想象一个橡皮筋,也许把它伸展得越长越好,但是你把它伸展得过长,以至绷断,那就不好,那很糟糕

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