當且僅當 Save Sign in to save words Simplified: 当且仅当 dāngqiějǐndāng ㄉㄤ ㄑㄧㄝˇ ㄐㄧㄣˇ ㄉㄤ if and only if Character by character 當(dāng)be 且(qiě)and 僅(jǐn)barely 當(dāng)be A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0