This is often called a single payer system since the government is doing most of the paying.
这通常被称为单一付款人系统，因为政府支付大部分费用。
经济 Crash Course
But the US has a single payer system for those over 65 and those below the poverty line.
但美国还有一个针对65岁以上和贫困线以下的人群的单一付款人系统。
英语百科
Single-payer healthcare
（重定向自Single payer system）
Single-payer healthcare is a system in which the state, rather than private insurers, pays for all healthcare costs. Single-payer systems may contract for healthcare services from private organizations (as is the case in Canada) or may own and employ healthcare resources and personnel (as is the case in the United Kingdom).