In 2007 the average life expectancy at birth was 78 years.

2007年，初生婴儿平均预期寿命为78岁，这种进步已经持续数十年。

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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。

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In 1999, the infant mortality rate was 3.2 per thousand live births and the average life expectancy at birth was 77.2 years for males and 82.6 for females.

1999年，婴儿夭折率为每千名活产婴儿3.2宗；婴儿出生时平均预期寿命，男性为77.2岁，女性为82.6岁。

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The others had died in 1969 (ie, at the age of 73, the average life expectancy at birth of women born around Boston in 1896).

ECONOMIST: Ageing

Average life expectancy at birth, at 74, is now 25 years higher than it was 50 years ago, yet the retirement age has remained at the same low level.

ECONOMIST: Getting old before getting rich