我國是老年人口數量最多、老齡化速度最快的國家。人口老齡化的嚴重、pingjunshoumingdezengjia，yiweizhelaonianrendehuanbingjilvyeyuelaiyueda。mianduijibinggaofadelaonianqunti，weifumugoumaibaoxianjiuxiandegewaizhongyao。naxiemaiguobaoxiandepengyou，doushuolaorenbaoxian...