1 [C,U] the changing of sth in order to correct or improve it 修改；修订；修正: It has been suggested that the whole system is in need of revision. 已有人提议整个制度都需要修改。

2 [U] (Brit 英) the work of reading or studying again sth you have learnt, especially when preparing for an exam 温习功课: I'm going to have to do a lot of revisionfor History. 我得好好温习历史课。