That means the U.S. hovers just above the replacement birth rate of an average two children per women, while the U.S. abortion policy (one of many factors influencing the Numbers) is purely voluntary.
这表示美国的人口出生率徘徊在每个妇女2个孩子以上,而美国堕胎政策是完全自愿选择的,这是诸多影响出生率的一个因素。
This large-scale rollout of birth-dose vaccination, in turn, prompted a policy change across the country.
这一做法反过来促进了全国各地的政策改变。
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