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These problems include the high sex ratio and the growing population aging.
例如出生人口性别比偏高、人口老龄化等.
汉英非文学 - 白皮书
Population aging is one of the world's population development tendency.
人口老龄化是世界人口发展的一种趋势.
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With the population aging, the number of Alzheimer disease patients has increased year by year.
随着人口老龄化, 老年痴呆症患者逐年增加,而老年痴呆到中晚期已无有效治疗方法.
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