英語翻譯：

相關(guān)詞條：

例句：

1. 角蛋白一種不溶解的較硬的蛋白物質(zhì)，是頭發(fā)、指甲、角和蹄的主要結(jié)構(gòu)成分
   A tough, insoluble protein substance that is the chief structural constituent of hair, nails, horns, and hoofs.
2. 最后她終于想到了寫字，用一只蹄子把她的名字－－很短的一個(gè)名字－－劃在沙地上。
   At length she bethought herself of writing, and inscribed her name-it was a short one-with her hoof on the sand.
3. 緊跟在他身後出現(xiàn)了一個(gè)帶角的分趾蹄動(dòng)物
   Close behind him appear an animal with horn and cleave hooves.
4. 這匹馬呼哧呼哧地喘著氣，不耐煩地跺著蹄子。
   The horse snorted and stamped its hoof impatiently.