这些细胞形成后会产生角蛋白，正是这种物质使得我们的指甲坚固且耐用。

As these cells form they produce keratin, the substance that makes the nail body hard and durable.

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随着新细胞的形成，被角蛋白填充的已有的细胞被向前推进，逐渐远离根基。

As new cells form, the existing keratin-filled cells are pushed forward, away from the root.

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随着新细胞的形成，被角蛋白填充的已有的细胞被向前推进，逐渐远离根基。

As new cells form, the existing keratin-filled cells are pushed forward, away from the root.

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