That changed abruptly 16 during the third quarter, when several of the world's biggest copper miners including BHP Billiton and Freeport reported weak results and cut production guidance for 2017.
但在第三季度情况突然发生变化，当时包括必和必拓（BHPBilliton）和自由港在内的多个全球最大的铜矿发布了疲弱的业绩报告，并削减了2017年的产量指引。
That changed abruptly 16 during the third quarter, when several of the world's biggest copper miners including BHP Billiton and Freeport reported weak results and cut production guidance for 2017.
但在第三季度情况突然发生变化，当时包括必和必拓（BHPBilliton）和自由港在内的多个全球最大的铜矿发布了疲弱的业绩报告，并削减了2017年的产量指引。
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