rollbackrollback /ˈrəʊlbæk $ ˈroʊl-/ noun [countable, uncountable] especially American English查看全部语言翻译an occasion when a tax, price, law etc is reduced to a previous level or changed so that it is the way it used to be税收、价格、法律等降回先前水平或恢复原状的情况 → roll backat roll1
