Notably, no matter whether it is pegged to a basket of currencies or a single currency, the yuan is in a position as a secondary currency.

很显然，汇率不论是参照一篮子货币还是单一货币，人民币都是次要货币。

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Securites become a kind of currency, traded in the so called “secondary market” at fluctuating price.

证券变成一种货币，在所谓的“第二市场”以波动价格予以交易。

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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。

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For many, it's now only a matter of time before the Chinese currency displaces the dollar as the world's reserve currency - or at least becomes a major secondary reserve currency like, er, the euro or the yen.

BBC: Mr Osborne and China's long road to a global currency

Steady remittances can offer a secondary boost if they are securitized by the banking intermediaries, thus providing hard currency to back borrowing in places where capital is short.

FORBES: Magazine Article