PS是英文postscript的缩写,意为“注释, 备注”,常用于信件、文章末尾。现代英汉综合大辞典postscript n.(信末签名后的)再者, 又及; 附言(略作P.S., PS., PS 或 p.s.)(书等的)附录; 跋, 补遗[英](新闻广播后的)结束语现代英汉词典postscript n.(信末签名后的)又及,附言,再者 (= P.S.)(书等的)附录,跋PS also P.S. American English [countable] postscriptexp. a note written at the end of a letter, adding more information: She added a PS to say 'hi' to my brother.Best wishes, Julie. PS Maggie sends her love. 也可以理解为:顺带说一下