短語詞組短語Marginal user cost 邊際使用者成本;邊際使用者費(fèi)用Increasing marginal opportunity cost 邊際機(jī)會(huì)成本遞增Marginal Personal Cost 邊際私人成本marginal amusing cost 社會(huì)邊際成本marginal transport cost 邊際運(yùn)營(yíng)成本marginal outage cost 邊際缺電成本private marginal opportunity cost 個(gè)人邊際機(jī)會(huì)費(fèi)用Marginal External Cost 邊際外部成本;成本;即邊際外部成本;外溢成本marginal production cost 邊際生産成本 返回 marginal cost