rollbackKK [ˋrolˏbæk] /ˈɹoʊlˌbæk/發音名詞1降價、調降、回降The supermarket announced a price rollback on fresh vegetables.那家超市宣布生鮮蔬菜降價。2撤銷、廢除、縮減Environmental groups are fighting the rollback of clean air rules.環保團體正在反對空氣清淨法規被撤銷。3還原、回復、回溯電腦After the update crashed the system, they performed a rollback.更新導致系統當掉後,他們執行了版本還原。4擊退、逼退軍事The strategy aimed at a gradual rollback of enemy forces.該策略的目標是逐步擊退敵軍。