life expectancy 详细解释

life expectancy

[.laif ik'spektəns]

预期寿命

词形变化

名词复数: lives |

英英释义

名词 life expectancy:

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

补充

life expectancylife expectancyn.1.平均寿命

例句

1. Women have a longer life expectancy than men.女人的预期寿命比男人长。 2. The average life expectancy was 40.平均预期寿命是40岁。 3. improvements in diet that have resulted in greater life expectancy for many people使许多人更长寿的饮食改善 4. calculating the life expectancies of different social groups计算不同社会群体的预期寿命 5. What is the life expectancy of a new computer? [=how long can a new computer be expected to last or be useful?]一台新电脑的使用寿命有多长?