Revisions implying that you've got something and then it's worked over again, additions might be made so now that's a new source.

修订意味着，你已经有素材,重新研究，这时候所增加的，变成了新的素材。

耶鲁公开课 - 旧约导论课程节选

But beyond the extremes, additions or subtractions to our external circumstances make very little difference.

但在这些极端情况之外，增加或减少的外部环境,产生的区别很小。

哈佛公开课 - 幸福课课程节选

People put new additions on or they redo the kitchen and bathroom and whatever.

人们翻新旧屋,或者改造厨房,浴室等部分

耶鲁公开课 - 金融市场课程节选

There's the performance version of 1634 and the printed version of 1637, and the additions to the text that Milton is making for the published version reflect, I think, his sense that he, like the Lady, is in the process of making an important transition.

634年的表演版本4,和1637年的印刷版本,弥尔顿在出版版本中添加的部分，我认为那表现出，就像是女士吧，是正在做转变的重要进程中。

耶鲁公开课 - 弥尔顿课程节选