silurus

例句：

1. 1.The silurus is a large mammal found in Africa.
   犀牛是一种在非洲发现的大型哺乳动物。
2. 2.The silurus has a distinctive hump on its back.
   犀牛背上有独特的驼峰。
3. 3. The silurus is protected by international law.
   犀牛受到国际法的保护。