| 单词 | demographic time bomb |
| 释义 | demography /dē-mogˈrə-fi/nounThe study of population, esp with reference to size, density and distribution ORIGIN: Gr dēmos the people, and graphein to write demogˈrapher noun demographic /dem-ə-grafˈik/ adjective Of or relating to demography noun
demographˈics singular noun Data relating to the structure of a population demographic time bomb noun A decline in the birth rate leading eventually to the workforce being unable to give adequate support to the elderly |
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