汗牛充栋 Save Sign in to save words Traditional (Taiwan): 汗牛充棟 hànniúchōngdòng ㄏㄢˋ ㄋㄧㄡˊ ㄔㄨㄥ ㄉㄨㄥˋ lit. enough books to make a pack-ox sweat or to fill a house to the rafters (idiom) fig. many books Character by character 汗(hàn)perspiration 牛(niú)surname Niu 充(chōng)sufficient 栋(dòng)classifier for houses or buildings A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0