人口流动 rénkǒuliúdòng population flow Origin Definitions Defs Strokes Stroke Words Sentences Sents 人口 rénkǒu noun population The total number of people living in a specific area; the inhabitants of a country or city.流动 流動 liúdòng verbnoun to flow to move as a liquid or gas, such as a stream or a current of air; to circulate