isthmus cartilaginis auris

例句：

1. 1.The doctor performed an operation to repair the damaged eardrum.
   医生进行了手术来修复受损的鼓膜。
2. 2.The patient was given medication to relieve the pain in his middle ear.
   病人被给予药物以缓解他的中耳疼痛。
3. 3. During the examination, the doctor carefully listened to the patient's middle ear for any abnormal sounds.
   在检查期间，医生仔细聆听了患者的中耳，寻找任何异常声音。