随着人民生活水平的提高和科学技术的进步,我国人口寿命不断延长。漫步城市乡村、街头巷尾,不经意间,我们发现身边的老年人渐渐多了起来,人口老龄化已经严重制约了我国社会、经济的发展,社会养老问题正日益成为社会各界普遍关注的热点话题。 With the improvement of people's living standards and the progress of science and technology, the life expectancy of our population has been continuously extended. Walking through urban and rural streets and lanes and inadvertently, we find that the number of older people around us gradually increases. The aging population has seriously hampered the social and economic development of our country. The issue of social aging is increasingly becoming a hot topic of general concern to all sectors of society.