The trading, buying and selling of virtual currency from popular games like World of Warcraft and EverQuest has been a largely underground market — until now.

至今为止，来自魔兽世界和传奇等热门游戏的虚拟货币还只能通过一个庞大的地下市场进行交易买卖。

youdao

Over time, those items can command a premium in the secondary market, where members trade their goods for virtual currency.

一段时间后，这些物品逐渐在二级市场走俏，玩家们在那儿换虚拟货币。

youdao

Contrary to utopian social planning, free-market virtual economies will emerge spontaneously rather than through design and the ultimate victorious currency will be a market-based competitor that can move seamlessly across multiple grids.

FORBES: Virtual Currencies and Roach Motels