Bitcoin was developed as a secure and low-cost alternative to conventional electronic payment methods, such as credit CARDS and automated clearinghouse payments.

比特币是传统电子支付方式的一种安全且低成本的替代方案，如信用卡和自动清算支付。

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Which is why, in preparation for Nov. 27--aka "Cyber Monday, " the unofficial kickoff to the online holiday shopping season--stores are redoubling their efforts to draw shoppers to their Web sites by getting more creative promotionally and by embracing alternative payment methods that don't necessarily require a credit-card number or a PIN.

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