最终的问题在于你对“要说的东西”进行思考和概念化的能力，一旦你拥有了这种能力，那么就要找到一种语言，让你可以更直接且优美地表达出来。

The ultimate issue is your ability to think about and conceptualize 'something to say' and once you have done that, find the language that allows you to say it most directly and elegantly.

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在产品概念设计的推理过程中，设计问题的知识表达是关键的第一步。

In reasoning process of product conceptual design, expression of knowledge of design problem is a pivotal step.

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为说明表达式问题，Wadler的文章使用了表的概念，其中类型为行，函数为列。

To illustrate the Expression Problem, Wadler's paper USES the idea of a table that has types as rows and functions as columns.

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