Something had to give, and that something has proved to be the oil price. Its dramatic 20 per cent plunge reflects the reality of a new era in world oil, one defined by a resurgence of North American supply.
必须有样东西付出代价，结果这样东西被证明是石油价格。油价大跌20%反映出世界石油新时代的现实，其特征是由北美供应的复兴。
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