Poor countries are racing through the same demographic transition as rich ones, starting at an earlier stage of development and moving more quickly.
穷国正飞速经历富国曾经走过的人口结构转型历程。而且，它们开始得更早，进行得更快。
Poor countries are racing through the same demographic transition as rich ones, starting at an earlier stage of development and moving more quickly.
穷国正飞速经历富国曾经走过的人口结构转型历程。而且，它们开始得更早，进行得更快。
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