Gold charged to a fresh all-time high while crude oil prices jumped by more than $2 a barrel, but it was action in the copper market that captured commodity investors' attention yesterday.
昨天的大宗商品市场上，黄金再创历史新高，原油价格每桶大涨逾2美元，但真正吸引大宗商品投资者关注的是铜市场的走势。
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