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demographers

网络人口统计学家们

demographers

demographers

demographers

人口统计学家们

另一种方法出现在人口统计学家们（demographers ）的作品中，尤其是最近人口统计学的生育时间序列分析从"时期-时期"分析 …

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Some demographers, however , argue that plummeting fertility rates and a rapidly aging population are reasons enough to ease the rules .

一些人口统计专家却认为，如今急剧下降的出生率以及快速形成的老龄化社会是尽快叫停这项政策的原因。

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Demographers used to say that fertility rates only fell when women got educated and the economy got rich .

人口学家们总是说生育率只有在妇女们获得了良好的教育并且在经济富裕的情况下才发生。

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Demographers expect the size of the working-age population to peak sometime in the next five years or so , and then gradually decline .

人口统计学家预计，适龄人口数量将在未来五年左右的某个时间达到顶峰，然后逐渐下滑。

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Demographers are waiting to see the full census results before drawing conclusions about data quality .

人口学家们在等更完整的普查数据出台，再对数据的质量做出结论。

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Sex and affection , some Mexican demographers argue , tend to be signs of confidence, expressions of faith that opportunities await.

一些人口统计学家认为，性行为与爱意表达很可能是信心的表示，表明了人们对于未来机遇的信念。

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millions of soon - to - retire baby boomers , say demographers , will propel this trend for years to come.

人口统计学家称，成百万行将退休的战后一代将此趋势烧得更旺。

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Demographers are perhaps best known for making population projections .

人口学家或许在人口预测上最为知名。

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Demographers cannot put a stop to the growth of population .

人口学家无法使人口停止增长。

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Demographers try to predict social fluidity .

人口统计学家试图预测社会流动性。

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Having too many people onthe planet is no longer demographers ' chief worry; now, having too few is .

地球人人口太多不再是人口学家最大的担心；他们现在反过来担心人口太少。

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Demographers talk about a "low-fertility trap " .

人口学家称之为 “低生育陷阱 ”。

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Demographers predict that the US and Europe will represent only 12 per cent of the population of the planet by 2050 .

人口学家预计，到 2050年，美国和欧洲将仅占地球总人口的 12%。

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Demographers worry that without change , China will become the first country in the world to age before it gets rich .

人口学家担心，如果不做出改变，中国将成为全球首个未富先老的国家。

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Demographers predict that by 2009, only 42 percent of all baccalaureate degrees awarded in the United States will be given to men.

人口统计学家预测，到了 2009 年，美国的学士学位将只有 42%是授予男生的。

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Demographers say the average couple needs to have 2 . 1 children to keep the population steady.

人口学家称，要保持人口稳定，平均每对夫妇要生养 2.1 个孩子。

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