Once any particular commodity starts to be used as a medium, this very process has a spiralling, or snowballing, effect.

一旦某个特定的商品开始被作为交换媒介来使用，这种交换过程就会产生一种螺旋效应，或者说滚雪球效应。

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Such limits would curb the number or value of contracts a trader could hold in a particular commodity and across relevant exchanges.

这一限额将限制交易商能够持有的某种特定商品和其在所有相关交易所的合同数量或合同价值。

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In this sense, the stylistic quality of the paintings is merely an added value to this particular commodity.

从这个意义上讲，绘画的形式感只不过是该商品的一个附加值罢了。

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Indeed, all this proposal really does is fix the price of a particular commodity quoted in a particular currency.

FORBES: Connect

Analysts have been suggesting for years that certain commodity prices, gold in particular, have risen too high and are due for a pullback.

FORBES: What To Make Of The Dramatic Drop In Gold Prices

The stock and commodity markets rallied Tuesday on notions this particular matter of uncertainty will be resolved very soon.

FORBES: P.M. Kitco Metals Roundup: Gold Sharply Higher on Heavy Short Covering, Bargain Hunting ahead of U.S. Election Results