Cerebral spinal fluid fistulas of the anterior skull base lend themselves to an endoscopic approach.Dissection begins with a meticulous anterior and posterior ethmoidectomy.是什么意思_Cerebral spinal fluid fistulas of the anterior skull base lend themselves to an endoscopic approach.Dissection begins with a meticulous anterior and posterior ethmoidectomy.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句