单词	valedictory
释义	valedictoryval‧e‧dic‧to‧ry /ˌvæləˈdɪktəri◂/ noun (plural valedictories) [countable] formal Word Origin WORD ORIGINvaledictory Origin: 1600-1700 Latin valedictus, past participle of valedicere ‘to say goodbye’, from vale ‘goodbye’ + dicere ‘to say’ a speech or statement in which you say goodbye when you are leaving a school, job etc, especially on a formal occasion—valedictory adjective:  a valedictory speech
随便看	oxygen debt oxygen mask oxygen tent oxymoron oyez Oyl, Olive oyster oyster bed Oyster card Oz oz Ozarks Ozawa, Seiji ozone ozone-friendly ozone layer Ozzie and Harriet P p. P2P P45 P60 PA pa p.a.

英语词典包含52748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。