Is the selling of services in this way a good idea 用好市多公司的方式来销售这些服务，会是个好主意吗？
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How does costco make money 好市多公司的盈利模式是什么？
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How does costco make money 好市多公司的盈利模式为何？
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Giant retail chain costco turns the rays of the hawaiian sunshine into useable energy by installing solar systems on store rooftops to curb global warming 大型连锁店量贩店好市多为减缓全球暖化，在其屋顶装置太阳能发电系统，把夏威夷的阳光转变为可用的能源。
