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

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