un·learnBrE/ˌʌnˈlɜːn/NAmE/ˌʌnˈlɜːrn/verbpresent simple - I / you / we / theyunlearnBrE/ˌʌnˈlɜːn/NAmE/ˌʌnˈlɜːrn/present simple - he / she / itunlearnsBrE/ˌʌnˈlɜːnz/NAmE/ˌʌnˈlɜːrnz/past simpleunlearnedBrE/ˌʌnˈlɜːnd/NAmE/ˌʌnˈlɜːrnd/past participleunlearnedBrE/ˌʌnˈlɜːnd/NAmE/ˌʌnˈlɜːrnd/ -ing formunlearningBrE/ˌʌnˈlɜːnɪŋ/NAmE/ˌʌnˈlɜːrnɪŋ/~sthtodeliberatelyforgetsththatyouhavelearned, especiallysthbadorwrong故意忘却（尤指错事或坏事）；抛弃◆You'llhavetounlearnallthebadhabitsyoulearnedwithyourlastpianoteacher. 你必须丢掉你的前任钢琴老师所教的一切坏习惯。