an expected time to live as calculated on the basis of statistical probabilities

literacy is up; life expectancy is up;family size is stabilising.

识字率上升；预期寿命上升；家庭规模稳定。

even libya and iran do well in this long-term assessment despite very low or even negative growth because they saw very rapid advances in life expectancy and school enrollments.

甚至，增长率很低甚至是负增长的利比亚和伊朗在长期评估上都很不错。这是因为他们在预期寿命以及入学率方面有了长足进展。

over the past 25 years, life expectancy after 50 has risen in the united states, but at a slower rate than in countries like japan and australia, said the national academy of sciences report.

在过去的25年中，美国人超过50岁的平均寿命有所增加，但是与日本、澳大利亚这样的国家相比其增长速度还是很低，美国国家科学院报道说。

life expectancy has dropped slightly for all americans except for black men, who gained around two and a half months in longevity, according to a recent report.

根据最近的一份报告称，所有美国人的预期寿命已经略微下滑，只有黑人男性例外，反而增长了大约两个半月的寿命。

「the linear increase in record life expectancy for more than 165 years does not suggest a looming limit to human lifespan, 」 they write.

「165年来有记录的平均寿命线性增长，并不是说人的寿命已接近极限。」他们在文章中写道。

as it happens, in that year life expectancy started rising.

因为恰从那年起，人均预期寿命开始回升。

these counties have seen huge increases in life expectancy over the last 10-20 years.

在过去的10至20年间，这些郡县居民的平均寿命有大幅增长。

likewise, their findings about life expectancy depend on the japanese, whose longevity is more likely to be due to a healthy diet than to a flat income distribution.

同样，他们关于寿命期望的发现来自日本。日本人的长寿更可能是由于更健康的饮食而不是更公平的收入分配。

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。

china’s one-child policy will keep birth rates low, but as life expectancy continues to increase, so will the dependency ratio, reducing the country’s potential for growth.

中国的独生子女政策将保持人口出生率低下，但是由于平均寿命继续提高，抚养比率将会上升，这将降低国家的发展潜力。

as the health and life expectancy of the elderly continues to improve in the future-as they surely will- retirement ages should be raised beyond age 70.

当未来老年人的健康和预期寿命继续增长，这是必然发生的，他们的退休年龄可能就要超过70岁了。

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。

in a series of articles and studies, he has argued that increasing life expectancy makes the midlife years a time to grow and flourish.

在一系列的文章和研究结果中，他认为不断增长的生活期望使得中年时期成长并日益蓬勃。

and the figures are probably an underestimate because they are based on life expectancy as it is now, not as it will be in future.

并且这些数字很可能被低估，因为这些数字是基于现在的平均寿命，而不是基于将来的平均寿命来计算的。

and this 「revolution」 resulted in changes in the whole structure of the world, populations multiplied, the average length of life expectancy increased, and standards of living rose.

这种「革命」所造成的结果是，世界的整体结构发生嬗变，人口成倍增加，平均预期寿命延长，人们的生活水平大大提高。

in 1970, tunisia had lower life expectancy than congo and morocco had fewer children in school than malawi.

在1970年，比起刚果和摩洛哥，突尼斯的预期寿命低，而入学率比马拉维还要少。

most west african countries wrested independence from french and british colonizers around 1960, but many have seen real incomes, standards of living, and even life expectancy drop since then.

大多数的西非国家在1960年左右摆脱法国和英国的殖民统治赢得独立，但是许多人发现从此以后实际收入，生活水平，甚至生活期望都下降了。

rising life expectancy and worries about the value of pensions mean the trend to work will continue.

人们对生活的期望越来超高，愈加担心养老金的价值，因而工作趋势将持续。

life expectancy was calculated for the study cohort, all israelis, and the population of the russian federation.

对上述研究对象、所有以色列人和俄罗斯联邦人的预期寿命进行了计算。

it is almost certainly going to reverse the rise in life expectancy – so we start living shorter lives than before.

几乎肯定的是，这将扭转人类预期寿命的上升趋势——所以我们的寿命将比以前短。