depopulate
verb [ T ] uk/ˌdiːˈpɒp.jə.leɪt/ us/ˌdiːˈpɑː.pjə.leɪt/
使人口减少，使居民减少
to cause a country or area to have fewer people living in it
The region was depopulated by disease/famine/war. 该地区的人口因疾病／饥饿／战争而减少。
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