China has already cut its rate of population growth by about one half since 1970.
自1970年以来，中国的人口增长率大约已经降低了一半。
With the growth of economic, the population also grows at a certain rate.
随着经济的增长，人口数量也在以一定速度增长。
With the growth of economic, the population also grows at a certain rate.
随着经济的增长，人口数量也在以一定速度增长。
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