under·goAWBrE/ˌʌndəˈɡəʊ/NAmE/ˌʌndərˈɡoʊ/verbpresent simple - I / you / we / theyundergoBrE/ˌʌndəˈɡəʊ/NAmE/ˌʌndərˈɡoʊ/present simple - he / she / itundergoesBrE/ˌʌndəˈɡəʊz/NAmE/ˌʌndərˈɡoʊz/past simpleunderwentBrE/ˌʌndəˈwent/NAmE/ˌʌndərˈwent/past participleundergoneBrE/ˌʌndəˈɡɒn/NAmE/ˌʌndərˈɡɔːn/, /ˌʌndərˈɡɑːn/ -ing formundergoingBrE/ˌʌndəˈɡəʊɪŋ/NAmE/ˌʌndərˈɡoʊɪŋ/~sthtoexperiencesth, especiallyachangeorsthunpleasant经历,经受(变化、不快的事等)◆toundergotests/trials/repairs经受考验;接受检修◆Mymotherunderwentmajorsurgerylastyear. 我母亲去年动过大手术。◆Somechildrenundergoacompletetransformationwhentheybecometeenagers. 一些儿童进入青少年期会完全变成另一个人。