名词
中文翻译：人口减少
同义词：
['population decline', 'population decrease']
例句：
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1. The country's population has been contracting for several years.
该国的人口已经连续几年在减少。
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2. The government is concerned about the population contraction in the rural areas.
政府对农村地区的人口减少感到担忧。
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3. The economic downturn has led to a significant population contraction in the city.
经济衰退导致该市人口显著减少。