角蛋白

例句：

1. 1. The scientist discovered a new typeof keratin that could beused in medical treatments.
   科学家发现了一种新的角蛋白，可以用于医疗治疗。
2. 2. Theresearcher found that the keratin structure of the skin is crucial forits elasticity and strength.
   研究人员发现，皮肤的角蛋白结构对其弹性和强度至关重要。
3. 3. The keratin fibers in hair are what give it itsstrength and durability.
   头发中的角蛋白纤维赋予了它强度和耐用性。