The soil of the Illinois prairies is fat, rich and thick.

伊利诺伊大草原上，土壤肥沃、丰产而深厚。

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Meanwhile, the body needed nutrients to the soil is a variety of, such as protein, fat, carbohydrates, vitamins, water etc.

同时，人体所需的养分是多种的，如蛋白质、脂肪、碳水化合物、维生素、水等。

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Because of the effect of soil pollution, atmospheric environment pollution and self-metabolism, some harmful contents were also bioaccumulation in biotic fat during plant materials' growth.

因种植和生产过程、土壤、大气环境及自身代谢等因素影响，其不仅含有植物的主要功效成分，同时也有微量有害成分存在。

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