It is a trading post and it's there by permission of and under the protection of the King of Egypt, and that's because he wants--it's handy for him to have a merchant settlement of Greeks for him to do business with.

这里是个通商驿站,而且获得了,埃及法老的许可和庇护,因为他认为,与希腊商人通商交易,为他提供了一些便利

耶鲁公开课 - 古希腊历史简介课程节选

The National Retail Federation points out that under terms of the settlement, a merchant who adds a surcharge to purchases on a Visa or MasterCard would have to do the same with American Express cards.

FORBES: Cost-Cutting Banks Seek Smartphone Customers

American Express is responsible for the merchant network, processing transactions from point of sale to settlement with card issuers.

FORBES: Quick Take