Category: with the same or similar nature of the target is the abstractcategory.
类：具有相似或相同性质的对象的抽象就是类。
2
Centered on the abstractcategory of tense and aspect, a detailed survey is carried out as to the prototype effects in the categorization of the system.
本文以英语时态范畴为视点，对英语时态系统范畴化过程中的原型效应展开了详细的调查研究。
3
Data categories are like abstract base classes; a category might be able to represent all models of car, for instance.