名词
中文翻译：人口变异
同义词：
['population change', 'population fluctuation例句：1. The researchers found that the population variance was significantly related to the economic growth.（研究人员发现，人口变动与经济增长有显著关系。）']
例句：
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1. The researchers found that the population variance was significantly related to the economic growth.
研究人员发现，人口变动与经济增长有显著关系。
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2. The government has been trying to reduce the population variance through various policies.
政府通过各种政策试图减少人口变动。
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3.The population variance is a crucial factor in determining the future development of the city.
人口变动是决定城市未来发展的关键因素。