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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	scotias Scotic Scoticism Scotism scotisms scotist Scotistic scotists Scotland Scotland Yard scotlandes scotlands Scoto- scotodinia scotograph scotoma scotomas scotomata scotomatous scotomy Scotopelia scotophiles scotophobes scotophobins scotopia

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。