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单词	quod erat demonstrandum
释义	quod erat demonstrandum Latin phrase quod erat de·​mon·​stran·​dum ˌkwȯd-ˈer-ˌät-ˌde-mən-ˈstran-dəm  -ˌdā-ˌmȯn-ˈsträn-ˌdu̇m : which (is what) was to be shown (originally) —abbreviation QED —used at the end of a logical or mathematical proof
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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。