单词	alumen ustum
释义	alumen ustum noun alumen us·​tum -ˈəstəm, -ˈu̇s- plural alumina usta -mənəˈəstə, -ˈu̇s- : burnt alum Word History Etymology New Latin First Known Use 1753, in the meaning defined above
随便看	fractionalization fractionalizations fractionalize fractionalized fractionalizes fractionalizing fractionally fractionary fractionate fractionated fractionates fractionating fractionation fractionations fractionator fractionators fractioned fractioning fractionisation fractionisations fractionise fractionised fractionises fractionising fractionizations

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。