fertility rate
英
美
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Noun:
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the ratio of live births in an area to the population of that area; expressed per 1000 population per year
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用作名词 (n.)
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The birth rate of the whole world is astonishing.
全世界的人口出生率简直惊人。
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But whatever the cause, it seems to mean fertility rates can overshoot downwards.
然而不管原因是什么,看起来都表示人口出生率下降过头了。
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But they had the effect of increasing fertility.
但它们却产生了促进生育率的效应。
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Nugent says statistics on the fertility rate were also revealing.
认为生育率的统计书数也是很有启迪意义的。
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