独一无二 dúyīwú'èr HSK7 unique Origin Definitions Defs Strokes Stroke Words Sentences Sents 独一 獨一 dúyī adjective unique unique; one and only无 無 wú adjectiveverb to not have to not have; there is no; lack; (as prefix) non-; un-; -less二 èr adjective different (bound form) different; other; not the same