The same nations and the short life expectancy of birth probably the lowest quality of life in other areas.

这一数字在下降，在上述国家,新生儿预期寿命较短，某些区域生活质量极低。

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What I plot on this graph here is as a function time, years, dates, life expectancy as a function of time.

在这儿的这张图是,一个关于时间,年,日期的函数,将寿命长短作为时间的函数

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But since life expectancy in the Ancient World was much less than ours, you didn't have usually several generations in these households, because older people just died.

但是古代人的寿命没我们长，一般不会出现几代同堂，因为年纪大了去世了。

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we've actually looked just expectancy in the brain of schizophrenics unhealthy controls So what we see is with Germans as the same thing that we saw with Americans.

我们对精神分裂症患者的大脑,进行了观察,我们在正常德国人身上观察到的结果,和我们在美国观察到的相同。

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Back in the 1840s, life insurance was very important because the average expectancy of life was only something like forty-five years, so that meant parents were dying left and right.

在19世纪40年代的时候,寿险是非常重要的,因为当时的人均期望寿命,仅为45岁左右,这意味着双亲平均只能活到45岁

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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

Life expectancy for humans has increased dramatically.

人类的预期寿命已有显著提高

耶鲁公开课 - 生物医学工程探索课程节选