Your text defines an electronic payment system as an alternative cash or credit payment method using various electronic technologies to pay for products and services in electronic commerce.

你的文字界定了电子支付系统作为一种替代现金或信用卡付款方式，运用各种电子技术，以支付产品和服务的电子商贸。

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The structure of system and the key technique for electronic commerce are given in this paper, the methods of payment on-line are also discussed.

本文对电子商务系统的组成及其关键技术进行了阐述，对在线支付模式进行了讨论。

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This paper advances the security target of the electronic commerce network payment system on the basis of having elaborated the question about the security of the network payment system.

本文在阐述电子商务网上支付系统安全性问题的基础上，提出其所要达到的安全目标。

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The next day, they met for smoothies in Palo Alto and came up with the idea that became PayPal: a system of electronic payment designed to make e-commerce easy, consistent, and secure.

NEWYORKER: No Death, No Taxes