postscript
n
~ (to sth)
1 (abbr 缩写 PS) extra message added at the end of a letter after the signature (信末签名後的)附笔, 又及
She mentioned in a postscript to her letter that the parcel had arrived. 她在信末附笔中说包裹已寄到.
2 facts or information added to sth after it is completed 补遗; 补笔; 後话
There was an interesting postscript to these events when her private diaries were published. 她的日记发表後, 补充了一些有关这些事件的趣闻.
Yes, I see. How can they get rid of waste water in this way? What a terrible colour the sea is now! It looks as if our class won't be able to bathe at all.