| 单词 | life expectancy |
| 释义 | > as lemmaslife expectancy life expectancy n. [compare German Lebenserwartung (1837 or earlier)] the average period that a person (of a specified age, state of health, etc.) may be expected to live, esp. as derived from statistics of the population at large (cf. expectation of life at expectation n. Phrases 5, life expectation n.); also in extended use. ΘΚΠ the world > life > source or principle of life > [noun] > expectation of life expectation of life1725 life expectancy1848 life expectation1867 liveability1914 1848 W. H. Robertson Pop. Treat. Diet (ed. 2) II. iv. 78 How important must be the purity of the respired air, to the health and life-expectancy of the population! 1875 G. C. Eggleston How to make Living vii. 117 The chances of death increase with every year of age, and..a calculation of the average premium during the life expectancy is made. 1935 Jrnl. Amer. Med. Assoc. 17 Aug. 514/2 Today, life expectancy at birth is 57 years. 1962 Daily Tel. 30 Apr. 24/3 Details of the Board's plans for closures in Scotland..await completion of a ‘life-expectancy’ survey. 2006 A. Goodman Intuition i. iv. 37 Once you start talking about ballparks—there's no difference in life expectancy between you and anybody else. < as lemmas |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。