Some background: The last time the prices of oil and other commodities were this high, two and a half years ago, many commentators dismissed the price spike as an aberration driven by speculators.

一些背景资料：上一次石油和其他农产品价格飙升还是在两年半以前，当时许多评论员都认为商品价格的飙升是由于投机行为所导致的。

youdao

Some background: The last time the prices of oil and other commodities were this high, two and a half years ago, many commentators dismissed the price spike as an aberration driven by speculators.

一些背景资料：上一次石油和其他农产品价格飙升还是在两年半以前，当时许多评论员都认为商品价格的飙升是由于投机行为所导致的。

youdao