noun 下载 🔗分享 分类，分级，归类。 The act of forming into a class or classes; a distribution into groups, as classes, orders, families, etc., according to some common relations or attributes. Examples : "The library uses classifications like "Fiction," "History," and "Science" to organize its books. " 图书馆使用像“小说”、“历史”和“科学”这样的分类来整理书籍。 system organization science biology 与AI对话词汇游戏阅读练习
