名词
中文翻译：蛋白质
同义词：
['amino acid', 'nucleic acid', 'amino sugar']
例句：
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1.Protein is an essential macronutrient for humans.
蛋白质是人体必需的宏量营养素。
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2.The body needs a variety of proteins to function properly.
身体需要多种蛋白质来正常运作。
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3. Proteins are found in many foods, including meat, fish, and dairy products.
蛋白质存在于许多食物中，包括肉类、鱼类和乳制品。