单词	even permutation
释义	even permutation noun : a permutation that is produced by the successive application of an even number of interchanges of pairs of elements Word History First Known Use 1881, in the meaning defined above
随便看	bescreening bescreens bescribble bese besee beseech beseeched beseecher beseechers beseeches beseeching beseechingly beseechings beseeing beseem beseemed beseeming beseemings beseems beseen besees beses beset besetment besetments

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。