For example, when you drop a button on a form, the button's designer is the entity that determines the appearance and behavior of the button.

例如，在窗体上放置按钮时，按钮的设计器就是确定该按钮的外观和行为的实体。

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The behavior is not bound to the entity but provided by applications and “multiple applications can read the same entities yet implement very different behaviors”.

行为不是绑定到实体上的，而是由应用提供的，“多个应用可以读取相同的实体，却实现截然不同的行为”。

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Basically, when we invoke the Mirror Image pattern, we analyze the behavior of an external entity and then create its likeness in our own system.

当我们援用镜像映象模式时，我们基本上是先分析某一外部实体的的行为特征，然后在我们自己的系统中创建它的相似体。

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