ngong Group.Outside the rain shelter at Keda University, crowds jostled to get tickets. At this point, it was clear that Yu Quan had a huge following, especially among college students. During this er...轉碼失敗！請您使用右上換源切換源站閱讀或者直接前往源網站進行閱讀！should open his "golden mouth" and says, "There's an economic concept called opportunity cost: resources can be used in various ways, but when you use them for one purpose, you have to give up other u...