劍橋詞典(of any structure in the body ) existing as a single structure , not part of a pair (肌肉、靜脈等)不成對的,非一對中之一的,單一的 If the obstruction is above the entry of the azygous vein , the syndrome is less pronounced . 如果梗阻位于奇靜脈入口上方,癥狀則會表現(xiàn)得相對不明顯一些。 返回 azygous