**中介者模式**的英文翻译是 Mediator Design Pattern。在 GoF 中的《设计模式》一书中，它是这样定义的：
> Mediator pattern defines a separate (mediator) object that encapsulates the interaction between a set of objects and the obje...
命令模式的英文翻译是 Command Design Pattern。在 GoF 的《设计模式》一书中，它是这么定义的：
> The command pattern encapsulates a request as an object, thereby letting us parameterize other objects with different requests, queue ...
**备忘录（Memento）模式**，也叫快照（Snapshot）模式，英文翻译是 Memento Design Pattern。在 GoF 的《设计模式》一书中，备忘录模式是这么定义的：
> Captures and externalizes an object’s internal state so that it can be restored later, all without ...
职责链模式也叫责任链模式。职责连模式的英文翻译是 Chain Of Responsibility Design Pattern。在 GoF 的《设计模式》中，它是这么定义的：
> Avoid coupling the sender of a request to its receiver by giving more than one object a chance to handle t...
**策略模式**，英文全称是 Strategy Design Pattern。在 GoF 的《设计模式》一书中，它是这样定义的：
> Define a family of algorithms, encapsulate each one, and make them interchangeable. Strategy lets the algorithm vary independentl...