分类架

例句：

1. 1. This is a great organizer for storing books and papers.
   这是一个很好的组织者，用于存储书籍和文件。
2. 2. The shelves are lined with books of different genres.
   书架上摆满了不同种类的书籍。
3. 3. The organizer has been well-used since it was purchased.
   自从购买以来，这个组织者就被充分利用了。