Russia says it will send a permanent observer to the Organization of the Petroleum Exporting Countries, amid mounting concerns among producers about falling oil prices.
俄罗斯说，它将向石油输出国组织派遣一个常驻观察员。
Russia says it will send a permanent observer to the Organization of the Petroleum Exporting Countries, amid mounting concerns among producers about falling oil prices.
俄罗斯说，它将向石油输出国组织派遣一个常驻观察员。
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