uncertainty of exchange rates 基本例句 汇兑行市的不稳定性; 外汇波动 Finance Minister Fukushiro Nukaga told reporters excessive foreign exchange volatility is not good for global growth and promised to keep a close watch.财政大臣额贺福志郎告诉记者，过多的外汇波动不利于全球经济增长，并承诺继续密切留意美元利率的变动。