THE dollar's steep drop this year has triggered speculation that central banks may soon intervene in the foreign-exchange markets to prop up the sickly currency.
美元今年急速下滑引起人们开始推测，央行可能马上就会对外汇市场进行干预，以支持有些病态的货币。
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High oil prices have allowed state and private investors across the Gulf to funnel billions of dollars into property markets, infrastructure projects and, more recently, foreign-exchangespeculation.