SN-0431 已核对来源，附原文与上下文。
等规模够了，也许可以做一个不做转账的兑换网站：只撮合买家和卖家直接互相兑换，类似 e-bay 的运作方式。
When there's enough scale, maybe there can be an exchange site that doesn't do transfers, just matches up buyers and sellers to exchange with each other directly, similar to how e-bay works.
为了更安全，兑换站可以充当比特币一侧的托管。卖家把比特币付款放进托管，买家把传统付款直接发给卖家。兑换服务不经手任何现实世界的货币。
To make it safer, the exchange site could act as an escrow for the bitcoin side of the payment. The seller puts the bitcoin payment in escrow, and the buyer sends the conventional payment directly to the seller. The exchange service doesn't handle any real world money.
这会比 e-bay 更进一步。即便付款落空后寄出的货物无法追回，e-bay 也照样运转良好。
This would be a step better than e-bay. E-bay manages to work fine even though shipped goods can't be recovered if payment falls through.
