Thanks to the forum moderator to sticky this thread. Also

來源: wave_forest 於 2014-07-14 14:05:53 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (129 bytes)
回答: How credit card payment works 由 wave_forest 於 2014-07-12 07:09:27

thanks to those who made comments.

It's a complicated business and I hope this post makes sense to laypeople.

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