动词短语
中文翻译：撤销
同义词：
['reverse', 'revert', 'revise']
例句：
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1.The company has decided to roll back its annual budget by 20%.
该公司决定将其年度预算削减20%。
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2.The teacher rolled back the lesson timetable to accommodate the extra class.
老师将课程时间表调回到以适应额外的课时。
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3.The company is rolling back its production line to improve efficiency.
公司正在撤回生产线以提高效率。