liú shuǐ bù fǔ
flowing water does not rot
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