The best information on early population movements is now being obtained from the 'archaeology of the living body', the clues to be found in genetic material.

关于早期人口迁移的最佳信息现在可以从“活体考古学”中获取，这是在遗传物质中发现的线索。

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Immunization against yellow fever is all the more critical now because of increased population movements in Africa.

目前，由于非洲人口流动日益加剧，黄热病免疫接种益发重要。

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As the industrialization process, increasing urbanization, population movements have become increasingly frequent.

随着工业化、城市化进程日益加快，人口流动日益频繁。

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Included was a warning: drought and crop failures could trigger major population movements and lead to political instability.

NPR: U.S. Report Links Climate Change to Security

Health officials point out that Pakistan and neighbouring Afghanistan repeatedly re-infect one another due to significant population movements between the countries.

BBC: Polio killings a major setback

Labour MP Margaret Hodge, chairwoman of the cross-party public accounts committee, said there was the potential for "sudden and unmanageable population movements" between inner and outer London and potential housing shortfalls were "deeply worrying".

BBC: Block of flats