Meat can provide the protein, fat, and essential amino acids that our body needs to function properly.

肉可以提供蛋白质，脂肪和必需氨基酸，我们的身体需要正常运作。

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Protein is posed by the various amino acids, from lean meat, chicken and low-fat dairy protein intake will help improve people's energies.

蛋白质是由各种氨基酸构成的，所以从瘦肉、鸡肉和低脂奶制品中摄取的蛋白，有助于提高人的精力。

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The plants can be deficient in certain things, especially fat soluble vitamins that come from meat and from essential amino acids.

植物中缺乏某些物质,特别是脂溶性维生素,那些只能从肉类和必需氨基酸中获得

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选