The market price goes small ups and downs frequently while there is no big overall changes. Such fluctuations of prices is often caused by speculation.

市场价格频繁的小涨小跌，但整体水平没有太大变化，这种波动通常是由投机性的行为引起的。

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The exchange rate has been volatile due to the fluctuations in oil prices and growing uncertainty as a result of higher risk aversion associated with the debt crisis in Europe.

由于原油价格波动，同欧洲债务危机相关的风险规避力度增大导致的不确定性不断增强，汇率一直呈现不稳定态势。

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That means we're likely to see higher food prices overall over the next decade, and the continued risk of dangerous price fluctuations like the one we're experiencing now with wheat.

这就意味着未来10年里粮食价格可能更高，与我们正在经历的小麦恐慌类似的危险的价格波动风险可能会一直持续下去。

youdao

Sufficient refinery capacity has as much influence on gasoline prices as fluctuations in the price of oil so if Americans want stable gasoline prices and almost no dependence on oil from outside North America, we need more refineries.

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"The historic response, if you like, is has always been to look to subsidize, to insulate the impact of the fluctuations of exchange rates and commodity prices by looking to subsidize ... things like bread, " Hanna told CNN.

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The other lines have tended to cancel out except at times of very marked fluctuations in energy prices.

ECONOMIST: Economics focus