Under this system , individual contributions determine benefits , according to a transparent formula that reflects the retiree 's life expectancy and the economy 's ability to pay .
This trend is superimposed on another : that life expectancy in most developed countries has been improving for both sexes .
这种趋势也伴随着另一个趋势:大多数发达国家男女的预期生命都在提高。
But research into life expectancy can throw out surprises . Take its relation to teenage pregnancy , for example : people in low life-expectancy groups become parents earlier .
就以当中对青少年怀孕的例子来说,研究发现:生活预期越低的人群,越早成为爸爸妈妈。
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。
I can look at actuarial tables and find his age-adjusted life expectancy as used by insurance companies .
我可以从精算统计表中查到保险公司所使用的基于他年龄的人寿期望值。
Such people have a life expectancy of less than a month , but a dozen similarly hopeless patients implanted with abiomed 's heart survived for about five months .
The growth in these expenditures is partly due to growing life expectancy and relatively low birth rates that will raise the number of retirees collecting social security benefits while reducing the relative number of men and women who are working to pay for these benefits .
If on other occasions we went out and something would happen which andy felt might upset me , he would begin to behave in a manner in which this expectancy flowed from his eyes and it was actually that , not the occurrence , that upset me .
But to the extent that redistribution is an explanation , it implies the opposite : that social mobility is a product of high public spending , a bit like the low incidence of poverty or longer life expectancy ( on both of which europe also does better than america ) .
He spoke sometimes with a marked savor and an unctuous kneading of the hands of that time when he should own the land , for he was the younger and by rule should have the expectancy of life .