短語(yǔ)詞組短語(yǔ)Total System Utility 整體效能Total l utility 總效用total social utility 社會(huì)總效用total utility TU 總效用expected total utility 期望總效用total utility value 總效用值maximization of total utility 總效用最大化TU -total utility 總效用total utility curve 總效用曲線 返回 total utility