长发及腰多浪费水资源
        
            [zhăng fā jí yāo duō làng fèi shuĭ zī yuán]
        
        
            A humorous take on common idioms, it sarcastically translates 'Long hair reaching the waist is a waste of water resources', implying that growing out one’s hair consumes much water during washing, combining personal appearance choices with concern over natural resource consumption.