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美国人越来越变得高龄了。个人的老龄化给我们的社会结构留下了痕迹。我们国家老年人的特点确实说明了他们自己的生活和我国近代史的
Americans are getting older. The aging of individuals leaves traces of our social fabric. The characteristics of the elderly in our country really illustrate their own lives and the modern history of our country