Ping'an looked at him and then said: "毛利潤 refers to the revenue from main business operations minus the cost of main business operations. Of course, this is only the definition in textbooks. In comme... text you'd like me to translate!One hand grasped Duan Laiming's head, while the other shot out in both directions.Oh, wow!This week, everyone around is dumbfounded. He actually made a move against Yo...