rollbackKK [ˋrolˏbæk] /ˈɹoʊlˌbæk/发音名词1降价、调降、回降The supermarket announced a price rollback on fresh vegetables.那家超市宣布生鲜蔬菜降价。2撤销、废除、缩减Environmental groups are fighting the rollback of clean air rules.环保团体正在反对空气清净法规被撤销。3还原、回复、回溯电脑After the update crashed the system, they performed a rollback.更新导致系统当掉后,他们执行了版本还原。4击退、逼退军事The strategy aimed at a gradual rollback of enemy forces.该策略的目标是逐步击退敌军。用这个字练口说→相关片语roll back