China's household registration system, set up in 1958 to control its citizens' movements, divided its countrymen into two groups: urban and rural residents.

建立于1958年的中国的户口制度限制了人口的流动，将国民分为两类：城市户口和农村户口。

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Since Harbin was the first liberated big city, the household registration system of Harbin liberated areas had a direct impact for China's household registration system.

由于哈尔滨是第一个解放的大城市，因此，哈尔滨解放区户籍制度对新中国的户籍制度的确立和完善有着直接影响。

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At issue is China's unique household registration - or hukou - system, which was intended to keep rural workers from flooding into more populous regions.

问题的关键是中国独特的户籍制度，又称户口，其目的是防止外来民工涌入人口更稠密的地区。

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In China's system of household registration (known as hukou), children born to rurally registered parents count as rural, even if their parents have migrated to the city, and regardless of where they themselves were born.

ECONOMIST: Problems for migrants

One of the greatest issues for China's 250 million migrant workers is the "hukou" system of household registration.

CNN: China's workforce at a crossroads