Oil prices rose to almost $72 a barrel yesterday on optimism that the global economy has reached its bottom, but the move prompted concerns that the doubling in crude prices since February could stem a recovery.
油價昨日升至每桶近72美元，原因是市場樂觀地認爲，全球經濟已經觸底。但油價上漲也引發了人們的憂慮：自2月份以來原油價格翻倍，可能會阻礙經濟復甦。
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