问题
问答题
Why do food prices keep on rising, when there seems to be much more food Is the abundance only temporary, or has it come to stay
答案
参考答案：
解析：为什么一方面粮价不断上涨，另一方面粮食似乎很充裕 粮食充裕是不是只是暂时的，或一直是这样
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