@Dank_H2O @macroliter I've never understood why SA is every used as a model for western high income countries with average age of around 40 and at least 2-3x as many elderly.
@我一直不明白为什么SA都被用作平均年龄在40岁左右的西方高收入国家和至少2-3倍的老年人的榜样。
@Dank_H2O @macroliter I've never understood why SA is every used as a model for western high income countries with average age of around 40 and at least 2-3x as many elderly.
@我一直不明白为什么SA都被用作平均年龄在40岁左右的西方高收入国家和至少2-3倍的老年人的榜样。