For example, Alipay is only really useful inside the Taobao environment. If you have Alipay set up, your barrier to make a purchase on Taobao has gone down dramatically.

例如，支付宝是淘宝上唯一真正有用的支付体系，如果你树立了支付宝账户，那么在淘宝购物的障碍就已经大大下降。

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Alibaba Group is the parent company behind Alibaba.com, an online marketplace for small businesses, Taobao, a shopping site for consumers, as well as Alipay, an online payment service.

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