I believe that the key factors now are somewhat different from those that drove up food prices in 2008. Growth in global demand for food and feed commodities is still a major part of the story, as are biofuels.
笔者认为驱动本轮上涨的关键因素与2008年的那些有所不同。全球对于食品和饲料的需求依然是其重要组成部分，生物能源的因素也依然存在。但两次上涨的短期和长期含义则大不相同。