The global economy, already beset by financial market turmoil and slowing US growth, is now confronted by the risk that the gradual decline of the US dollar could run out of control.

• 全球经济已经因为金融市场振荡和美国经济增长减缓而不安，现在又面临着美元逐渐下跌导致全球经济可能会失去控制的风险。