So it means young couples will have to support four parents who have a life expectancy of 73 years old.

这就意味着年轻的夫妇要赡养四位平均寿命为七十三岁的老人。

youdao

So it means young couples will have to support four parents who have a life expectancy of 73 years old.

这就意味着年轻的夫妇要赡养四位平均寿命为七十三岁的老人。

youdao