Any other approach ignores the representation problem, assumes that context-free facts and logical rules are sufficient, and will fail.

任何其他方法都忽略了表示方面的问题，均假定不会受到环境限制且逻辑规则就已足够了，此方法将会失败。

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In this article, I show several techniques-both with Ajax and without-that demonstrate this context change-free approach to user experience design.

在本文中，我将介绍多种技巧—包括使用Ajax和不使用的技巧—演示了用户体验设计中自由改变上下文的方法。

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