单词	diketene
释义	diketene noun di·​ketene (ˈ)dī+ : an unsaturated pungent liquid lactone C4H4O2 made by spontaneous dimerization of ketene in solution and used chiefly in making derivatives of acetoacetic acid Word History Etymology di- + ketene
随便看	shrivelled shrivelling shrivels shriven shriver shrivers shrives shriving shroff shroffage shroffed shroffing shroffs shrogs shroom shrooms Shropshire shropshires shroud shroud knot siphonoglyph siphonoglyphe Siphonophora siphonophorae siphonophoran

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