In almost all situations, you will use the supplied class for a category.
在大多数情况下，您将为一个类别使用被提供的类。
I use the Category class to hold inventory information.
我使用Category类来保存库存信息。
For this shopping cart, there is a hierarchical Category class and a simple Product class.
对于这个购物车来说，有一个层次Category类和一个简单的product类。
“Middle-class” describes an income category but also a set of attitudes.
“中产阶级”不仅描述了一个收入类别，而且还指一套群体心态。
In each category, ships are organized by ship type and size class.
在每个种类中，船是按型号和大小来排序的。
EXAMPLE Class of airline ticket and category of hotel in a hotel guide.
飞机的舱级和宾馆的等级分类。
Class is a basic category of historical materialism.
阶级是唯物史观的基本范畴。
Is oolong tea category, is one of China's Ten Famous tea oolong class representatives.
属于乌龙茶类，是中国的十大名茶之一乌龙茶类的代表。
Objective c: how to inherit category methods loaded in a parent class?
目的：如何继承类加载父类中的方法？
Class the books in this category.
按目录把书分类。
Class the books in this category.
按目录把书分类。
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