她在整理衣柜时，把所有衣服按季节进行分类。

She spent the morning ___categorizing her clothes by season while organizing the closet.

图书馆员正在将新书按主题分类。

The librarian is ___categorizing the new books by subject.

图书馆正在根据主题对书籍进行分类。

The library is ___categorizing books by their subjects.