名词
中文翻译：生育力指数
同义词：
['生育率，生育能力指数例句：1. The fertility index of the population is a key indicator of economic growth.（人口的生育力指数是经济增长的关键指标。）']
例句：
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1. The fertility index of the population is a key indicator of economic growth.
人口的生育力指数是经济增长的关键指标。
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2.The researchers found that the fertility index had a significant impact on the birth rate.
研究人员发现生育力指数对出生率有显著影响。
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3. The government has been working to improve the fertility index and encourage more couples to have children.
政府一直在努力提高生育力指数并鼓励更多夫妇生育孩子。