Over the past few years the prices of wheat, corn, rice and other basic foodstuffs have doubled or tripled, with much of the increase taking place just in the last few months.

• 过去几年当中，小麦、玉米、大米等基础粮食作物的价格已经翻了一倍甚至两倍，而且最大的涨幅就发生在过去几个月之间。