郢人斤斧 yǐng rén jīn fǔ 鼠屎汙羹 shǔ shǐ wū gēng 流水不腐，户枢不蠹 liú shuǐ bù fǔ，hù shū bù dù 吴带当风 wú dài dāng fēng