音标：[fəˈtɪlɪti: ˈreiʃiəu] ；

人口出生率

fertility ratio的用法和样例：

例句

They are the only possible means of dealing with excessive fertility.它们是解决人口出生率过高这一问题的唯一手段。
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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英语新闻

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英闻天下

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