单词	cycloaddition
释义	cycloaddition noun cy·​clo·​ad·​di·​tion ˌsī-(ˌ)klō-ə-ˈdi-shən  : a chemical reaction leading to ring formation in a compound Word History First Known Use 1963, in the meaning defined above
随便看	board tree board wages board-a-match board-and-batt board-and-batten board-certified boardable boarded boarder boardercross boarders boardier boardiest boarding boarding card boarding home boarding nettings boarding officer boarding pass boarding pike boarding school boarding schools boardinghouse boardinghouses boardings

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。