随着(美国)全国人口的老龄化和压力溃疡病例的增加，这一数字预期将以每年高达10%的速度增长。
This figure is expected to grow by as much as 10 percent annually as the nation's population ages and the incidence of pressure ulcers increases.
日本是全球老龄化速度最快的国家之一。据日本政府预测，截至2050年，日本65岁以上的老年人占总人口的比例将达40%。
Japan has one of the world's fastest-ageing societies and the government predicts that by 2050 the proportion of people over 65 will reach 40 percent.
城市接纳农村流动人口，从近期看，可以增加城市劳动力供给，减缓城市老龄化速度，减轻城市抚养比；
The city admitting floating population from rural area increases the supply of workforce in urban area and slows down the aging speed in cities in the near future.
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