is not vitamin C," Ou Yan said, then looked at Li Sen, "There is one component in this powder that is Long Teng Grass."What kind of dragon is the floating grassNow, Li Sen could no longer stay calm. H...ing for a collaboration...This kind of thing happened, I estimate the cooperation is going to be ruined. Later on, I'll have to apologize in person...The hotel manager dared not say another word, fear...