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单词	sine qua non
释义	sine qua nonsi‧ne qua non /ˌsɪni kwɑː ˈnəʊn $ -ˈnɑːn/ noun [singular] formal Word Origin WORD ORIGINsine qua non Origin: 1600-1700 Late Latin ‘without which not’ something that you must have, or which must exist, before something else can happen SYN  prerequisitesine qua non for/of The control of inflation is a sine qua non for economic stability.
随便看	tea cloth tea cosy teacup tea garden teahouse teak teal tea leaves tealight team team-mate team player team spirit teamster Teamsters teamwork tea party Tea Party movement teapot tear tearaway teardrop tearful tearfully tear gas

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。