An American's life expectancy at birth is about 78 years, which is lower than in most other affluent countries.

美国人出生时的平均预期寿命大约是78岁，这比大多数富裕国家的国民寿命要低。

youdao

In 2007 the average life expectancy at birth was 78 years. This follows decades of progress.

2007年，出生时平均预期寿命为78岁，延续了以往数十年的上升趋势。

youdao

Life expectancy at birth has risen from 52 years in 1960 to 72 now.

出生时平均预期寿命已从1960年的52岁提高到现在的72岁。

youdao

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。

麻省理工公开课 - 媒体、教育、市场课程节选

World-wide, from 1970 to 2010, male life expectancy at birth increased to 68 from 56, and female life expectancy at birth increased to 73 from 61, according to a study published in December by researchers mostly from the Institute for Health Metrics and Evaluation, at the University of Washington in Seattle.

WSJ: Seeking a Survivor for a Lifetime Appointment

Over the two decades ended in 2010, each one-year increase in life expectancy at birth was associated with about a 10-month increase in healthy life expectancy, according to data published in the Lancet in December.

WSJ: Seeking a Survivor for a Lifetime Appointment

Life expectancy at birth for US women is rising in absolute terms but falling relative to other countries.

FORBES: Why Are U.S. Women Dying Earlier? Because We're Fat And We Smoke(d) Too Much