户枢不蠹 hùshūbùdù vitality Definitions Defs Origin Strokes Stroke Words Sentences Sents 流水不腐，户枢不蠹 liúshuǐbùfǔ, hùshūbùdù constant activity literally meaning that flowing water does not rot and a door hinge does not get worm-eaten; used to signify that constant movement or exercise prevents stagnation and decay
