| 词汇 | rollback |
| 释义 | roll·backBrE /ˈrəʊlbæk/ NAmE /ˈroʊlbæk/ noun [sing. , U ] (especiallyNAmE ) a reduction in a price or in pay , to a past level （价格或工资等的）下跌，回落the act of changing a situation , law , etc . back to what it was before （情形、法律等的）回复，恢复 |
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