hù shū bù dù
lit. a door hinge never becomes worm-eaten
constant activity prevents decay (idiom)
liú shuǐ bù fǔ , hù shū bù dù
Flowing water does not rot, nor a door-hinge rust (idiom)
constant activity prevents decay
liú shuǐ bù fǔ , hù shū bù dù
Flowing water does not rot, nor a door-hinge rust (idiom)
constant activity prevents decay