Global life expectancy averages out to 71.4 years.

世界人口的人均为71.4岁。

Many countries saw their life expectancy increase.

许多国家的预都增加了。

Life expectancy has increased across the world.

全世界的预也在增加。

Life expectancy was low across the world.

全世界的预都很低。

For many years, U.S. life expectancy was rising.

多年来，美国预一直在上升。

Life expectancy is half of what it is today.

平均只有今天的一半。

They are especially well-known for their long life expectancy.

它们尤其以长而闻名。

However, life expectancy varies from one animal to another.

然而，不同动物的预是不同的。

" Being taller is associated with longer life expectancy, " he said.

“个子越，越长，”他说。

However, where you're born determines your life expectancy.

然而，不同地区的平均是有区别的。

It's based on factors like income, life expectancy and health.

它是基于收入、预和健康状况等因素。

And if you are very sedentary, it can lead to a lower life expectancy.

如果你经常久坐不动，那么它会缩短你的预。

Modern medicine has since transformed the life expectancy of all Americans.

现代医学从此已经改变了所有美国人的平均预。

That's equivalent to the U. S. life expectancy in 1996.

目前的数字相当于美国 1996 年的水平。

Why do the Japanese have such a long life expectancy?

为什么日本人的平均如此之长？

It is not just that women have a longer life expectancy.

这不仅仅是因为女性有更长的预。

But life expectancy is short, and hard labor takes its toll.

但人类短暂，艰苦劳动大行其道。

Any pet's life expectancy depends on their habitat.

任何宠物的都取决于它们的生活环境。

And I do have life expectancy increasing and developed society.

我这里写了预增加和发达社会。

Small wonder. Americans' life expectancy has nearly doubled over the past century.

难怪，在过去的一个世纪里，美国人的几乎翻了一番。