Copper prices have slumped to their lowest in six years as the world has revised down its estimates of future growth in China.
铜价已跌至六年来的最低点，原因是外界下调了今后中国的经济增长预期。
Copper prices have slumped to their lowest in six years as the world has revised down its estimates of future growth in China.
铜价已跌至六年来的最低点，原因是外界下调了今后中国的经济增长预期。
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