单词	De Morgan's theorem
释义	De Morgan's theorem noun De Mor·​gan's theorem də̇ˈmȯrgənz-, dēˈ- : one of a pair of theorems in logic: the denial of a conjunction is equivalent to the alternation of the denials and the denial of an alternation is equivalent to the conjunction of the denials Word History Etymology after Augustus De Morgan †1871 English mathematician
随便看	orange fruit moth orange grass orange hawkweed orange horseshoe bat orange I orange jasmine orange jessamine orange juice orange lead orange leaf rust orange lily orange madder orange maggot orange margined blue orange melon orange milkweed orange milkwort orange mineral orange ocher orange peel orange pekoe orange plume orange puppy orange quit Orange R

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。