When a country is ageing (median age above 40), it again has a high dependency ratio, this time because of old people.
而当一个国家趋向老迈时(中位年龄在40岁以上)，依赖性比例仍然高，这是因为老人多的原故。
When a country is ageing (median age above 40), it again has a high dependency ratio, this time because of old people.
而当一个国家趋向老迈时(中位年龄在40岁以上)，依赖性比例仍然高，这是因为老人多的原故。
应用推荐