Qui semel malus, semper prasumitur esse malus in eodem genere. He who isonce bad, is presumed to be always so in the same degree. Cro. Car. 317.
英语词典包含2567994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。