n.整理；分类
动词sort的现在分词.
She spent a whole afternoon sorting out her stamps. 她花了整整一个下午整理邮票。
She is sorting index card into alphabetical order. 她在按字母顺序整理索引卡。
It takes a long time of sorting out so much books. 把这么多书分类整理要花很多的时间。
Minnie was alone in the post office, sorting mail. 明妮独自在邮局，将邮件分类。
分类
