Unless the quality of an application's software is sustained, the relationship between its costs and the business function it delivers will continually erode.

除非一个应用软件的质量长期不变，在其成本及其提供的商业功能之间的关系，会不断的降低。

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Contract law should not only provide transaction equity, but also reduce transaction costs o as to promote transaction business. However, this function is ignored in the legal theory and practice.

合同法不仅应该保障交易安全，还应该降低交易成本，以促进交易，但合同法的这一功能在理论上和实践中受到忽视。

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