aa清瘦----
幼苗
共回答了16个问题采纳率:87.5% 举报
Population is growing older is our will to solve a problem, thousands of the old man will appear. this means that our country to be a lot of labor. there is a large number of youth in the near future will be the old man. it will affect our economic development.
原创哦
1年前
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