classifying

动词 classify:

1. arrange or order by classes or categories
   同义词：classify, class, sort, assort, sort out, separate
2. declare unavailable, as for security reasons
   同义词：classify
3. assign to a class or kind
   同义词：relegate, classify

1. The act or result of classifying.
   分类分类行为或分类结果
2. People who work in libraries spend a lot of time classifying books.
   图书馆工作人员要花很多时间把图书分类。