请帮忙翻译几个关于养老的句子。

社会养老存在制度缺陷和实践中的难题 Social pension system deficiencies exist in the practice and problems
老有所医 Old medical care
老有所乐 Le elderly
健全城乡社会养老保障体系是社会养老的有效手段 Sound urban and rural social old-age pension social security system is an effective means of
扩大社会保障主体是社会养老的有益补充Expansion of the main social security pension is a useful complement to the community
夕阳产业Sunset industry

In the social retirement existence system flaw and practice difficult problem always has medical always to have happy the perfect city and countryside society retirement safeguard system is social retirement effective measure the expansion social security main body is the social retirement supplements beneficially the sunset industry