The doubling of the spot copper price since January to more than $6,000 a tonne have taken the headlines in the base metal market. But it is the price movements in copper far forward contracts that have been even more dramatic.
自1月份以来，现货市场铜价翻了一番，至每吨逾6000美元，这成为了贱金属市场上的头条新闻。然而，铜远期期货合约的价格波动则更令人瞩目。
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