不同于动物蛋白质，植物蛋白质少一些成分，缺少人体获取和分解蛋白质所需的一种或多种氨基酸。

Unlike most animal protein, plant proteins are incomplete, lacking one or more of the amino acids that your body needs to make and utilize proteins.

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他开始做一系列的笔记，在笔记中他完善了自己的理论，记录了在一些完全不同的领域中，象动物饲养和藤壶中的研究成果。

He started a series of notebooks in which he began refining his theory, recording the results of his research in fields as disparate as animal husbandry and barnacles.

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听力丧失以及相关失衡的主要原因在于人类和其他一些哺乳动物的听觉细胞无法自行再生。这点和其他生物如鸟类不同。

The major reason for hearing loss and certain balance disorders is that - unlike other species such as birds - humans and other mammals are unable to spontaneously regenerate these hearing cells.

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