fertility rate是什么意思 fertility rate怎么读
fertility rate的英文翻译是什么意思，词典释义与在线翻译
Noun:- the ratio of live births in an area to the population of that area; expressed per 1000 population per year
fertility rate的用法和样例
用作名词 (n.)
- The birth rate of the whole world is astonishing.
全世界的人口出生率简直惊人。 - 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。 - But they had the effect of increasing fertility.
但它们却产生了促进生育率的效应。 - 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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