The global emergence of the population question poses a serious challenge to many countries and regions.

人口问题在全球范围出现，成为许多国家和地区面临的严重挑战。

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In fact, many scholars, domestic and foreign, also have studied the fluid population question from different aspects.

实际上，国内外很多学者也从不同的角度研究了流动性人口问题。

youdao

In fact, many scholars, domestic and foreign, also have studied the fluid population question from different aspects.

实际上，国内外很多学者也从不同的角度研究了流动性人口问题。

youdao