用作及物动词
▲S+~+n./pron.
Librarians spend a lot of time classifying books.图书馆工作人员花许多时间将书分类。
◇ 用于be ~ed结构
In a library books are usually classified by subjects.在图书馆,书籍通常是按科目分类的。
用作宾补动词
▲S+~+n./pron.+as n.
We classified his novels as serious literature.我们认为他的小说属于文学类。