base of modiolus

例句：

1. 1. The doctor removed the modiolus to perform an operation.
   医生取出耳石进行手术。
2. 2. The patient had a modiolus removed during the procedure.
   患者在手术中取出了耳石。
3. 3.The patient's condition improved significantly after the removal of the modiolus.
   患者在接受耳石移除后状况明显好转。