fertility rates翻译
fertility rates的基本解释
读音: 美: 英:
生育率：在一定群体的女性中，如果她们按照当前平均生育率的模式生育并在生育年龄期内存活下来，她们平均会生育多少个孩子的数量，用作衡量人口增长强度的指标。
例句
By some studies, the safety nets for retirees have reduced fertility rates.一些研究表明，退休人员的社会保障体系使生育率降低了。Africa's fertility rates are falling.非洲的出生率下降了。
This helps to explain why their fertility rates have fallen.这就是生育率下降的原因。
短语
Total fertility rates 总生育率 ; 生育率age-specific marital fertility rates 分年龄已婚生育率
fertility rates Fall 人口出生率下降
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纠错
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