Global life expectancy averages out to 71.4 years.

世界人口的人均寿命为71.4岁。

Life expectancy was low across the world.

全世界的预期寿命都很低。

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

多年来，美国预期寿命一直在上升。

Life expectancy has increased across the world.

全世界的预期寿命也在增加。

Life expectancy is half of what it is today.

平均寿命只有今天的一半。

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

“个子越高，寿命越长，”他说。

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

然而，不同地区的平均寿命是有区别的。

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期寿命。

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的平均预期寿命。

Why do the Japanese have such a long life expectancy?

为什么日本人的平均寿命如此之长？