名词
中文翻译：人口减少
同义词：
['decline in population', 'population decrease']
例句：
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1. The city's population has been steadily declining for the past decade.
过去十年里，这个城市的居民数量一直在稳步下降。
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2. The researchers found a significant population decline in the area.
研究人员发现该地区的人口显著减少。
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3. The government is working to reverse the population decline and promote sustainable development.
政府正在努力扭转人口减少的趋势，促进可持续发展。