Perpetual change does not mean recurrent change, as the kaleidoscope of pedestrian action on a street corner may be said to endure perpetual change. 永恒的变化并不意味着反复出现的周期性的变化，一个街角万花筒般的过路的行人的行动，可以称之为产生永恒的变化。
The World Food Program says people are suffering from a combination of factors, including high food prices, the global financial crisis, unemployment and recurrent poor food crops. 世界粮食计划署表示人们正遭受各种因素结合的影响，包括粮食价格过高，全球金融危机，失业以及循环的粮食农作物贫乏。
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