有时波动非常
Sometimes the fluctuations are very intense.
以上为机器翻译结果，长、整句建议使用 人工翻译 。
不过，欧元区之外，各国货币间的汇率则上下波动，有时甚至非常剧烈。比如上世纪70年代的经济及货币动荡，加之反复无常的油价，推动汇率来回波动。
Otherwise, however, currencies swung against each other, sometimes wildly, as the economic and monetary turmoil of the 1970s combined with high and volatile oil prices to push exchange rates around.
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