ear.drum

eardrum的音标和读音：
DJ音标发音： [ˈiəˌdrʌm]
KK音标发音： [ˈɪrˌdrʌm]

eardrum的词性：
n.Anatomy （名词）【解剖学】

1. The thin, semitransparent, oval-shaped membrane that separates the middle ear from the external ear.Also called tympanic membrane, tympanum
耳鼓：一种薄的、椭圆形的半透明膜，将中耳与外耳分隔开来也作 tympanic membrane， tympanum