tar keratosis

例句：

1. 1.The patient had to have his burn treated with a special cream.
   病人必须用一种特殊的药膏治疗他的烧伤。
2. 2.The doctor advised him to keep the burned area clean and covered with a bandage.
   医生建议他保持烧伤区域清洁并用绷带覆盖。
3. 3. The child's face was covered in tar keratosis after the accident.
   事故发生后，孩子的脸部被焦痂覆盖。