As word
1yan1
Eustachian tube (linking the pharynx 咽 [yan1] to the tympanic cavity 鼓室 [gu3 shi4] of the middle ear)/auditory tube 2gu3
Eustachian tube (linking the pharynx 咽 [yan1] to the tympanic cavity 鼓室 [gu3 shi4] of the middle ear)/auditory tube 3guan3
Eustachian tube (linking the pharynx 咽 [yan1] to the tympanic cavity 鼓室 [gu3 shi4] of the middle ear)/auditory tube