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1. Oxford Dictionary

   middle ear

   英式

   • n.
     the air-filled central cavity of the ear, behind the eardrum.

   • noun: middle ear, plural noun: middle ears

2. • 更多解釋

   middle ear

   • IPA[ˌmidl ˈir]

   美式

   • n.
     the air-filled central cavity of the ear, behind the eardrum.

   Oxford American Dictionary