这是替代食品中的另一种长期存在的食品。

This is another persistent one among alternative circles.

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在意大利的一些地区栗子蛋糕被作为土豆的替代食品。

In some parts of Italy a cake made of chestnuts is used as a substitute for potatoes.

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最后，当我还有一个读者的时候，我想提请人们注意一种替代食品和能源的来源。

Lastly, while I still have an audience, I would like to bring attention to an alternative food and energy source.

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