Why are people living longer than they did just a few hundred years ago?

为什么现在的人,比仅仅是几百年前的人活得更久

耶鲁公开课 - 生物医学工程探索课程节选

who I'm no longer living in the same area as or use it to kind of make plans with some friends.

联系那些和我不住在一个地方的朋友或用它和一些朋友们定定计划。

用社交网站找到的人 - SpeakingMax英语口语达人

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 is at its worst after retirement ... when you are no longer-- you've exhausted your human capital and you're living off of all the accumulated physical capital.

退休后，到达顶峰,当你不再-,你用尽了你的人力资本,只能以之前积累下来的,有形资本为生。

耶鲁公开课 - 金融市场课程节选

We imagine instead of living 80 years,living 90 or 95 or more We imagine a longer life But what is it that happens when I say ? if only I'd been born earlier?

我们想象不仅活80，90或95岁,我们想象能活更长时间,但如果我想象早点出生,会发生什么情况？

耶鲁公开课 - 死亡课程节选