Advanced concepts like abstract relations, or relation inheritance, are also part of the RDL language, but they will not be covered in this article.
更深入的概念，如抽象关联，或者抽象继承，也是RDL语言的一部分，但是本文将不作介绍。
Inheritance by extension is a common object-oriented design and is easily expressed through showing abstract classes in UML.
通过扩展来进行继承是一种常见的面向对象设计，很容易通过在U ML中显示抽象类来表达这种继承。
Offering both an interface and an abstract class is redundant, but I find it convenient: in most cases, I only need the abstract class, but the interface enables multiple inheritance.
同时提供接口和抽象类是多余的，但我发现这样很方便：在大多数情况下，我只需要抽象类，但接口支持多继承性。
Technically, OOP is just about abstract data typing, inheritance and polymorphism, but other issues can be at least as important. The remainder of this section will cover these issues.
从技术的角度上来看oop其实就是对于数据类型的抽象，继承和多态，但是其他的问题也很重要，我会在下面的章节里提到这些问题。
Behaviors do not provide true "multiple inheritance" support for core language features like abstract classes and interfaces.
行为不提供真的“多重继承”为核心的语言特点，如抽象类和接口的支持。
Abstract: The inspiration of Phoenix International Media Center comes from the respond to the site and the inheritance of the traditional Chinese culture.
摘要：凤凰国际传媒中心的创意来自于对场所条件的响应，和对传统文化的精神的传承。
Abstract: Although inheritance tax has not been put INTO practice, it will soon be in legislation. This article is trying to find a way to solve the problems we confront.
遗产税在我国尚未开征，但立法等准备工作已经展开，本文仅就在开征过程中可能遇到的困难从理论上进行浅显的探讨。
Abstract : The inheritance of Virtual Property is one of the inevitable and significant issues in the amendment ofLaw of Succession of China.
摘要 网络虚拟财产继承是我国《继承法》修改中难以回避的议题之一。
The library will contain two base classes declared as abstract (they can't be instantiated), but I will use them as base classes for building application-specific classes through inheritance.
该类库将包含两个基类宣布为抽象的（它们不能被实例化） ，但我会利用这些基类，用于继承。
The abstract class is the base class in an inheritance relationship with another class.
抽象类是与另一个类有关的继承关系中的基类。
The abstract class is the base class in an inheritance relationship with another class.
抽象类是与另一个类有关的继承关系中的基类。
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