occipital foramen

例句：

1. 1. The patient was found to have a ruptured occipital foramen.
   患者被发现有枕骨孔破裂。
2. 2. The surgeon performed an occipital foramen block to relieve the patient's pain.
   外科医生进行了枕骨孔阻滞来缓解病人的疼痛。
3. 3. The patient had to undergo surgery to repair the occipital foramen.
   患者不得不接受手术来修复枕骨孔。