炼油厂和燃料提供商销售燃料，同过去一样，以最好的价格销售产品。
Then refineries and fuel providers sell fuel, competing as they have always done to offer the best product at the best price.
比如你可以设身处地地假设自己是某家知名存储厂商，主要向IT买家和服务提供商销售硬件。
Put yourself in the shoes of an incumbent storage vendor that has traditionally sold its hardware to IT buyers and service providers alike.
BAE已不再像过去那样依赖大的“平台”销售，它现在更将自己看作是复杂系统的“终身支持”提供商，这很像航空引擎业。
BAE is less dependent on big "platform" sales than it used to be and now sees itself as a provider of "through-life support" for complex systems, much like the aero-engine industry.
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