单词	rollback
释义	rollbackroll‧back /ˈrəʊlbæk $ ˈroʊl-/ noun [countable, uncountable] especially American English Examples EXAMPLES FROM THE CORPUS That resolution demands a rollback in utility rates and a scaling back of the market-oriented economic policies imposed by Bucaram. The gas tax rollback, initiated because gasoline prices spiked this spring, has since fallen by the wayside. The vote set the stage for a government-wide review and partial rollback of affirmative action programs. 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 → roll back at roll1
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