短語詞組短語producer s surplus 生産者賸餘producer r surplus 生産者賸餘producer surplus ps 生産者賸餘Producer 's Surplus 生産者賸餘;生産者風(fēng)險(xiǎn)Consumer and Producer Surplus 消費(fèi)者及供應(yīng)商盈馀producer ' s surplus 生産者賸餘Producer Surplus for a Market 市場生産者賸餘 返回 producer surplus