最后，任何给定农产品和矿产品的价格都应该回归到供给增加任何一单位生产的成本。
In the long run, the price of any given commodity should revert to the cost of producing an incremental unit of supply.
创建业务模型可以获取业务的各种度量标准，例如执行给定任务所需的时间、涉及的资源以及成本。
Creating business models lets you capture business metrics, such as The Times required to perform given tasks, the resources involved, and the costs.
这导致维护成本增加，给定版本所接受的增强功能请求数量减少。
This has led to higher maintenance cost and a lower number of enhancement requests accepted for a given release.
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