咽鼓管阻塞: eustachian obstructioneustachian tube obstructionobstruction of eustachian tube
咽鼓管软骨: auditory tube cartilagecartiiages of the pharyngotympanic tubecartilage of auditory tubecartilage of eustachian tubecartilage of pharyngotympanic tubecartilage of the pharyngotympanic tube