单词	镂冰
释义	镂冰 lòu bīnglabor in vain鏤冰
随便看	profitable for mental discipline profitable goods profitable groups profitable haul profitable hotel profitable industry profitable insurance profitable intermediaries organization profitable investment profitable investments profitable management profitable market profitable model profitable modes profitableness profitablenesses profitable occupation profitable operation profitable opportunities profitable opportunity profitable or interesting to sb profitable pattern profitable restaurant profitable return profitable room