因特网上的电子商务可以分为三个方面：信息服务、交易和支付。
Internet e-commerce can be divided into three aspects: the information service, trading and payment.
因特网上的电子商务可以分为三个方面：信息服务、交易和付出。
E-commerce on Internet can be divided into three respects: Information service, trade and paying.
因特网站点信息服务成本主要包括 ：站点成本、用户成本和拥塞成本 ；站点收益包括广告收益、电子商务经纪人收益、技术服务收益、用户收益和社会收益。
Costs of Internet websites include those of sites, users and congestion, while their profits include those from advertisements, e business brokers, technical services and users.
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