A flurry of speculation by futures market traders has pushed prices of metals such as copper and gold to all-time highs, as funds bet on upcoming shortages in supplies and try to hedge against inflation.
期貨市場交易員的一連串投機行為，已將銅和黃金等金屬價格推至歷史高位，基金押注供應短缺即將到來，并試圖對沖通脹風險。
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