名词
中文翻译：人口类型
同义词：
['population type', 'population category', 'population group']
例句：
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1. The government is trying to understand the type of population it needs to address its economic challenges.
政府正试图了解需要的人口类型，以应对其经济挑战。
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2. The city has a diverse population, with people from different countries and backgrounds living together.
这个城市人口多元化，来自不同国家和背景的人们共同生活。
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3.The study found that the type of population had a significant impact on the success of the project.
研究发现，人口类型对项目的成功有显著影响。