剑桥词典the delicate covering of the brain or spinal cord 蛛網膜 Symptoms associated with an arachnoid cyst can include headaches , nausea , seizures , and visual disturbances . 蛛網膜囊腫的症狀包括頭痛、嘔心、癲癇以及眡力障礙。 返回 arachnoid