拼音：liú shuǐ bù fǔ，hù shū bù lóu
注音：ㄌㄧㄡˊㄕㄨㄟˇㄅㄨˋㄕㄨㄅㄨˋㄌㄡˊ
解释：比喻经常运动的东西不易受侵蚀。同“流水不腐，户枢不蠹”。
出处：《吕氏春秋·尽数》：“流水不腐，户枢不蝼，动也。”
英语：The used key is always bright.
Metaphor: something that moves frequently is not easy to be eroded. The same as "running water does not rot, household hinges do not bark".
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