elderly population

• 老年人口

elderly population的用法和样例：

例句

1. Unfortunately the elderly population in America is increasing fast.
   不幸的是，在美国的老年人口正在增加快。
2. While we are happy about the increase in our life expectancy ,it has also resulted in a rapid increase of the elderly population.
   我们为人民预期寿命的提高感到高兴，但这也带来了老年人口迅速增长的问题。