Global life expectancy averages out to 71.4 years.

世界人口人命为71.4岁。

Many countries saw their life expectancy increase.

许多国家命都增加了。

Life expectancy has increased across the world.

全世界命也在增加。

Life expectancy was low across the world.

全世界命都很低。

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

多年来，美国命一直在上升。

Life expectancy is half of what it is today.

命只有今天一半。

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

它们尤其以命长而闻名。

However, life expectancy varies from one animal to another.

然而，不同动物命是不同。

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

“个子越高，命越长，”他说。

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

然而，不同地区命是有区别。

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

它是基于收入、命和健康状况等因素。

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

如果你经常久坐不动，那么它会缩短你命。

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命。

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

目前数字相当于美国 1996 年水。

Why do the Japanese have such a long life expectancy?

为什么日本人命如此之长？

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

这不仅仅是因为女性有更长命。

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

但人类命短暂，艰苦劳动大行其道。

Any pet's life expectancy depends on their habitat.

任何宠物命都取决于它们生活环境。

And I do have life expectancy increasing and developed society.

我这里写了命增加和发达社会。

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

难怪，在过去一个世纪里，美国人命几乎翻了一番。