名词短语
中文翻译：人口组成
同义词：
['population composition', 'population structure', 'population distribution', 'population makeup']
例句：
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1.The composition of the population is changing rapidly due to immigration.
由于移民，人口构成正在迅速变化。
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2. The government has been working on improving the composition of its population.
政府一直在努力改善其人口结构。
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3.The composition of the population affects economic growth and development.
人口构成影响经济增长和发展。