blue ointment

例句：

1. 1. The doctor prescribed him a blue ointment for his sore throat.
   医生给他开了一种蓝色的药膏来治疗他的喉咙痛。
2. 2. She applied the blue ointment to her cut finger and waited for it to heal.
   她把蓝色的药膏涂在割伤的手指上，等待它愈合。
3. 3. After applying the blue ointment, she wrapped her wound in a bandage.
   涂抹了蓝色药膏后，她用绷带包扎了伤口。