However, because a base class may itself inherit from another class, a class may indirectly inherit multiple base classes.

不过，因为基底类别本身可能是继承自另一个类别，所以一个类别可能间接继承许多基底类别。

youdao

Another use of abstract classes is to create a single base class for multiple derived classes in which that base class should never be instantiated.

抽象类的另一个用途是为多个派生类创建一个基类，在这些派生类中，基类决不会被实例化。

youdao

One way to clean up the design of multiple classes in the Struts code base is to realize that this idiomatic pattern exists and consolidate that behavior.

要清理Struts代码库中多个类的设计，一种方法就是意识到这种惯用模式的存在并巩固这一行为。

youdao