Russia also has low birth rates.
俄罗斯的出生率也很低。
High birth rates were often balanced out by high death rates.
高生育率常被高死亡率抵消。
Older programs have established live birth rates based on years of experience.
更老方案多年得活胎出生率。
Birth rates are notoriously difficult to predict.
众所周知，出生率是很难预测的。
Poverty and illiteracy go together with high birth rates.
贫困, 文盲与高出生率密切相关。
Maternity services were to be reduced in consequence of falling birth rates.
由于出生率下降，产科服务会随之削减。
It is also important to understand the definitions of pregnancy rates and live birth rates.
解读妊娠率和活胎出生率得定义也是重要得。
This is not only due to high birth rates, but to lower death rates as well.
这不仅仅是由于出生率高, 而且还由于死亡率低得缘故。
Germany is facing a crisis as low birth rates combine with a growing population of citizens who are living longer.
德国目前正面临着低人口出生率和人口老龄化的危机。
A number of releant outcomes including pregnancy and lie birth rates were inestigated.
包括怀孕率和婴儿安全出生率在内的多项相关结果被研究。
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