A sliding scale of fees is used for operations so that richer customers subsidise poorer ones.

按比例计算的费用会用于手术费用，这样富裕的病人可以资助贫穷的病人。

youdao

A sliding scale of fees is used for operations so that richer customers subsidise poorer ones.

按比例计算的费用会用于手术费用，这样富裕的病人可以资助贫穷的病人。

youdao