au·then·ti·cateBrE/ɔːˈθentɪkeɪt/NAmE/ɔːˈθentɪkeɪt/verbpresent simple - I / you / we / theyauthenticateBrE/ɔːˈθentɪkeɪt/NAmE/ɔːˈθentɪkeɪt/present simple - he / she / itauthenticatesBrE/ɔːˈθentɪkeɪts/NAmE/ɔːˈθentɪkeɪts/past simpleauthenticatedBrE/ɔːˈθentɪkeɪtɪd/NAmE/ɔːˈθentɪkeɪtɪd/past participleauthenticatedBrE/ɔːˈθentɪkeɪtɪd/NAmE/ɔːˈθentɪkeɪtɪd/ -ing formauthenticatingBrE/ɔːˈθentɪkeɪtɪŋ/NAmE/ɔːˈθentɪkeɪtɪŋ/toprovethatsthisgenuine, realortrue证明…是真实的;证实◆~sthTheletterhasbeenauthenticatedbyhandwritingexperts. 这封信已由笔迹专家证明是真的。◆~sthassthExpertshaveauthenticatedthewritingasthatofByronhimself. 专家鉴定这字迹是拜伦的亲笔。▸au·then·ti·ca·tionBrE/ɔːˌθentɪˈkeɪʃn/NAmE/ɔːˌθentɪˈkeɪʃn/noun[U]