sharp decrease in population
sharp decrease in population
人口急剧减少
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Prof Fleming is concerned that the general population are not aware of this sharp decrease in fertility.
BBC: The cost of fertility treatment 'tourism'
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Recent conflicts and rural to urban migration that reduced the population of the region and changes in ways of life have caused a sharp decrease in the number of performers, resulting in the loss of many archaic styles and genres of solo singing.
UNESCO: CULTURE