单词	Roman alum
释义	Roman alum noun : alum crystallized in cubes especially : alum formerly made from alunite at Tolfa near Rome that was reddish because of a very small amount of iron oxide though otherwise very pure Word History First Known Use 1653, in the meaning defined above
随便看	airhole airholes airier airiest airified airig airilier airiliest airily airiness airinesses airing airing cupboard airings airish airjack airjacks airland airle-penny airless airlessness airlessnesses airlift airlifted airlifter

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。