There is no doubt that some plant food, such as oatmeal, is more economical than meat, and superior to it in regard to both mechanical and mental performance.

无疑，像燕麦片之类的一些植物性食品，不仅比肉类更经济，而且对于机械和智力上的表现也更有优势。

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There is no doubt that some plant food, such as oatmeal, is more economical than meat, and superior to it in regard to both mechanical and mental performance.

毫无疑问，一些素食，例如是麦片，比肉类更经济，不管在机械上，还是在精神上，都更加优越。

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