The OPEC basket price has averaged $98.50 a barrel this year.

欧佩克今年的一篮子原油平均价格为每桶98.50美元。

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The cartel requested a study on the effect of invoicing oil in an alternative currency, and an OPEC committee proposed using a basket of currencies to price the commodity.

欧佩克要求对采用另一种货币进行石油结算的影响进行研究，欧佩克一个下属委员会提出用一篮子货币对石油定价。

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