... fertility vitamin 生育维生素,维生素... fertility statistics生育力统计 fertility ratio 人口出生率 ...
双语例句
1
Vital statistics have helped identify major trends in fertility, child survival and child mortality.
关键统计数据可以帮助我们发现生育率、儿童存活率和死亡率方面的主要趋势。
2
With no net immigration, and fertility rates more or less where they've been for the past 35 years, the Bureau of Statistics estimates that our population in 2050 would be roughly the same as now.