Nantoka/丁二烯dīng èr xī丁二烯 (dīng èr xī) is a Chinese word meaning “butadiene C4H6; biethylene”.Meanings1butadiene C4H62biethyleneCharacters in 丁二烯丁dīng · male adult二èr · two烯xī · alkeneRelated words第二second二two二十twenty; 20丁male adult丁used in 丁丁[zheng1 zheng1]丁surname Ding马丁Martin (name)十二twelve周二Tuesday拉丁Latin独一无二(idiom) unique; unmatched; unrivalled老二second-eldest child in a familyStudy Chinese with flashcards →