Amino acid is not only a basic unit composing protein, but is also an important physiological active substance.

氨基酸不但是组成蛋白质的基本单位，也是重要的生理活性物质。

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Amino acid is not only a basic unit composing protein, but is also an important physiological active substance.

氨基酸不但是组成蛋白质的基本单位，也是重要的生理活性物质。

youdao