To make a revision of something that is written or something that has been decided means to make changes to it in order to improve it, make it more modern, or make it more suitable for a particular purpose.
近义词
editing , correction , alteration
双语例句
例： The phase of writing that is actually most important is revision.
写作中真正最重要的阶段是修改。
例： A major addition to the earlier revisions of the questionnaire is the job requirement exercise.
对之前问卷修订版的一个主要改动是增加了和工作要求相关的题目。