Expectation of Life for Females.

女性预期寿命。

The duration of marriage is related most obviously to the expectation of life.

很明显，婚姻生活的持续时间与人的预期寿命有关。

Expectation of life is a slippery figure, very easy to get wrong at the highest ages.

预期寿命不是一个固定数字，在最高年龄上很容易弄错。

An insurance company can tell you the expectation of life of a man forty years of age.

保险公司能够告诉你，四十岁人的寿命期望值。

The length of life depends on various factors. Expectation of life is due to various factors.

人们寿命的长短取决于种种因素。