They are paid for in a private currency, which members earn by participating in various activities, trading items or buying them with real dollars.

这些都是用虚拟币购买，会员们可通过参加各种活动、交易物品或用真实美元购买来获得。

youdao

Greece doesn't have its own currency, and so is in the approximate position of a private borrower.

希腊没有自己的货币，所以处在类似私人筹资者的地位，而不像主权债务国。

youdao

Currency "manipulation" amounts to more than foreign-exchange intervention; China also has strict capital controls which, although leaky, keep private savings at home.

“操纵”人民币汇率不仅仅是干预外汇，中国也采取了严格的资本管制，以阻止私有储蓄外流，尽管这种管制也有漏洞。

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Hayek argued that in competitive private markets, private currency issuers would compete to maintain the value of their currencies.

FORBES: Rethinking Money: The Rise Of Hayek's Private Competing Currencies

The introduction of private currency competition would allow the markets to settle the question without causing harm throughout the system.

FORBES: Private Currency Competition Is The Monetary Answer

Another private currency model is time-backed currency, which has been spearheaded by liberal lawyer Edgar Cahn, former advisor to Robert Kennedy and Sargent Shriver.

FORBES: Rethinking Money: The Rise Of Hayek's Private Competing Currencies