单词：keratinizes
v become horny and impregnated with keratin
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Fingernails. Theyre good for scratching, biting, clipping, and polishing. But what are they, in fact? 手指甲可以被用来划，咬，剪，磨。但是事实上，它们究竟是什么呢？ Although nails may look simple, they actually have var
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During times of drought, animals are stressed to the limit. 在干旱时期，动物们的压力已至极限。 Normal behavior is basically thrown out the window and it becomes a no holds bar fight for survival. 通常的行为都已不再适用，这
侏罗纪搏击俱乐部
Pre-Listening Vocabulary dominant: strong; used most often keratin: a fibrous protein found in hair, nails, and the outer layer of skin puberty: the growth period during which a childs body reaches sexual maturity nail-biting: causing anxiety or nerv
趣谈英语
Daddy, lets order a pizza, Billy said. That sounds like a good idea, said his dad. They looked at a menu they had at home. What kind do you want? his dad asked. Billy wanted a large pizza. He wanted a pizza with four toppings. He wanted cheese, peppe
简单慢速英语阅读
Junctional epithelium - the epithelium which seals the base of the gingival sulcus against the tooth. Keratan sulphate - a glycosaminoglycan found in cartilage, with chondroitin sulphate. Keratin - a
医务英语
ichthyosis 鱼鳞病 impetigo 脓疱疮 isomorphic reaction 同形反应 keratin 角蛋白 keratinocyte 角质形成细胞 keatolytics 角质松解剂 keratoplastics 角化促成剂 lamella lucida 透明
医务英语
Paracrine - cell messengers also called cytokines which are locally acting, produced by neighbouring cells or the extracellular matrix, as distinct from as distinct from endochrine or hormonal messeng
医务英语
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