释义 |
de.mog.ra.phyHdI5mBg7rE7fi, $-5mB:7grE-n [U]the study of changes in the number of births, marriages, deaths, etc. in a particular area during a period of time.人口统计学historical demography历史人口统计学The demography of an area is the number and characteristics of the people, in relation to their age, sex, whether they are married or not, etc., who live in the area.人口统计The increase in the number of young people leaving to work in the cities has had a dramatic impact on the demography of the villages.上城做工的年轻人口的数量增长对乡村人口的统计产生了戏剧性的冲击效果。
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