户枢不蠹 (戶樞不蠹) hù shū bù dù

hù shū bù dù set phrase a door hinge never becomes worm-eaten; constant activity prevents decay
Domain: Idiom 成语 , Subdomain: , Concept:
Notes: (CC-CEDICT '戶樞不蠹')

Also contained in

流水不腐,户枢不蠹

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Truncated for common words