組合論 Save Sign in to save words Simplified: 组合论 zǔhélùn ㄗㄨˇ ㄏㄜˊ ㄌㄨㄣˋ combinatorics Character by character 組(zǔ)form 合(hé)close 論(lùn)opinion A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0