詞匯

1.?????????????national census?全國人口普查

2.?????????????enumerator?人口普查員

3.?????????????ethnicity?民族

4.?????????????populous?人口稠密的

5.?????????????residence?居住，定居

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China's seventh national census

China's seventh national census has officially kicked off on November 3. Tracking down more than 1 billion Chinese citizens is by no means easy. According to Xinhua, about seven million?enumerators?will knock on doors?to collect personal information such as names, ID numbers, gender, ethnicity, age, marital status, residence, as well as education and professional information.?