我们可以使用称为双重分发的模式将变化推入子类中，通过这种方式，我们不需要破坏现有的接口定义。

We can use a pattern called Double Dispatch to pull out the variation into the subclasses in such a way that we don't break existing interface contracts.

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领先于主流 Web 服务的技术在适应框架的方式上提供了双重特性。

Technologies that predate mainstream Web services offer a dual nature in the way they fit into frameworks.

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这种双重配置方法的存在让您可以为自己的项目选用最为简单的配置 iBATIS 的方式。

The dual configuration methods allow you to configure iBATIS using the easiest method for your project.

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Milton recognizes that way of thinking as a double standard, ; and he isn't satisfied with this vulgar double standard; so he comes up with a vulgar double standard of his own.

弥尔顿认为这种思维方式有双重标准，他并不满足于低俗的双重标准;,因此他提出了一个他自己的庸俗双重标准。

耶鲁公开课 - 弥尔顿课程节选