The blue drink is called powerade, and the Chinese name is Dongle, which is a sports drink produced by Coca-Cola. There are tropical fruit flavors (transparent bottle, blue water) and lemon grapefruit flavors (golden bottle, colorless water). Its main components are sugar, various electrolytes and antioxidants, which can supplement nutrients lost during exercise, maintain and improve exercise ability and accelerate the elimination of fatigue after exercise.