实际上，BIG还集成了一个小额付款服务，您也可能会用到它。
In fact, BIG has already been integrated with a micropayments service that you may also wish to use.
根本上来说，这个理由只是部分基于优秀的小额付款服务系统的缺失。
That was originally driven partly by the absence of good micropayment systems.
付款服务代表服务提供者，可以用来执行金融交易，以实现双方之间的付款。
The payment Service represents a Service Provider that can be used to capture a financial transaction and result in a payment being made between two parties.
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