The UK's replacement rate is 1.7 and Italy's is 1.2.
英国的人口替换率是1.7；意大利是1.2。
they are on target to achieve a replacement rate of between 35% and 55%, depending on the country.
而他们能够得到的目标替换率根据国家不同将介于35%至55%之间。
By about 2020, the global fertility rate will dip below the global replacement rate for the first time.
到2020年左右，全球生育率将第一次低于全球生育等值替换水平。
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