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单词	contrapositive
释义	contrapositive noun con·​tra·​pos·​i·​tive ˌkän-trə-ˈpä-zə-tiv  -ˈpäz-tiv : a proposition or theorem formed by contradicting both the subject and predicate or both the hypothesis and conclusion of a given proposition or theorem and interchanging them "if not-B then not-A " is the contrapositive of "if A then B " Word History First Known Use 1870, in the meaning defined above
随便看	adjudicative adjudicator adjudicators adjudicatory adjudicature adjugate adjugates adjunct adjunct accusative adjunct professor adjuncter adjunctest adjunction adjunctions adjunctive adjunctly adjuncts adjuration adjurations adjuratory adjure adjured adjurer adjurers adjures

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。