It's brought huge volatility in prices, so much so that in 2011, your average European car manufacturer saw a raw material price increase of 500 million Euros, wiping away half their operating profits through something they have absolutely no control over.
它带来了价格的巨大波动， 以至于在2011年， 普通的欧洲汽车制造商都看到 原材料价格上涨了 5亿欧元， 吞噬了他们一半的营业利润， 而面对这一切他们却束手无策。