Facebook appears to be building its own payment system for virtual goods purchased on its social network and on external sites.

脸谱（Facebook）似乎也正在建立自己的支付系统，使购买者无论是在自己的社交网站上还是在其他网站上购买虚拟商品都能运用该系统进行支付。

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Joyo, for instance, has its own payment system and doesn't allow customers to use other services.

比如说，卓越就有自己的支付系统，且不允许顾客使用其他支付体系。

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This is a world of its own with its own payment system, hairdresser, manicure, doctor and a 24-hour open staff restaurant.

这是一个自给自足的世界，他们拥有自己的支付系统，发廊，美甲店，医生和24小时营业的员工餐厅。

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Because eBay handles its own payment processing through subsidiary PayPal, the company can track each step of a sale.

FORBES: Magazine Article

Alibaba has its own payment system, but most customers use their bank accounts.

FORBES: As Sales Decelerate In China, Alibaba Sharpens Its Toolbox

And that excludes the upheaval to the banks' own payment systems.

ECONOMIST: Foreign exchange