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全社会性的老龄化问题不是美国独有的,甚至也不是西欧的一些国家所独有的。目前,全世界老年人口不断地在增加。世界老年人口增长的
The issue of a total social aging is not unique to the United States, nor even unique to some countries in Western Europe. At present, the world’s elderly population is constantly increasing. The world’s elderly population growth