noun 下载 🔗分享 类别,种类,范畴。 A group, often named or numbered, to which items are assigned based on similarity or defined criteria. Examples : "The library organized its books by category, such as fiction, non-fiction, and children's books. " 图书馆将书籍按类别整理,例如小说、非小说和儿童读物。 group type organization system structure thing essential 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 范畴, 类别。 A collection of objects, together with a transitively closed collection of composable arrows between them, such that every object has an identity arrow, and such that arrow composition is associative. Examples : "The library organizes books into different categories, like fiction, nonfiction, and children's literature. " 图书馆将书籍按照不同的类别进行组织,比如小说、非小说和儿童文学。 math logic philosophy science essential 与AI对话词汇游戏阅读练习