| 单词 | life expectancy |
| 释义 | life expectancy noun countable usually singular ■the length of time that a living thing, especially a human being, is likely to live （尤指人的）预期寿命 •Life expectancy in Europe has increased greatly in the 20th century.欧洲人的预期寿命在20世纪大幅增长。 |
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