Home/butanonebutanone/byoot-n-ohn/US // ˈbyut nˌoʊn //UK // (ˈbjuːtəˌnəʊn) //丁酮,丁烷酮,丁酮类,正丁酮Definitionsn.名词 noun1 Chemistry.: methyl ethyl ketone. Level 4Browse all words →