The survey included 140 homes, drawn from the five major urban population centres and eight cluster sites throughout the country.

调查包括在全国五个主的人口中心和八个聚居地点抽取一百四十名家庭进行调查。

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The survey included 140 homes, drawn from the five major urban population centres and eight cluster sites throughout the country.

调查包括在全国五个主的人口中心和八个聚居地点抽取一百四十名家庭进行调查。

youdao