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.

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。

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Others must travel as checked bags or in the cargo hold -- a dark and sometimes dangerous place where temperatures can vary wildly.

其他宠物必须作为行李托运或是被放在货舱内——货舱里很黑，温度变化很大，而且有时还会有危险。

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Others must travel as checked bags or in the cargo hold -- a dark and sometimes dangerous place where temperatures can vary wildly.

其他宠物必须作为行李托运或是被放在货舱内——货舱里很黑，温度变化很大，而且有时还会有危险。

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