19.Other countries may tap the " black" trade, where Russian oil—ferried on tankers with their transponders turned off, transferred from ship to ship on the high seas or blended with other crudes—cannot be traced.
其他国家可能会利用“黑色”贸易,俄罗斯
石油——在油轮上转运时关闭转发器, 在公海上从一艘船转移到另一艘船或与其他原油混合——无法追踪。机翻
「经济学人 Finance and economics」评价该例句:好评差评指正