Subject + 的 + 耳朵
耳朵 (ěrduo) is a Chinese noun meaning "ear." It refers to the physical organ of hearing and appears in many common expressions and idioms related to listening, attention, and perception.
他戴着耳机,耳朵都红了。
Tā dàizhe ěrjī, ěrduo dōu hóng le.
He was wearing headphones, and his ears had turned red.
你小声点,隔壁的人耳朵可灵了。
Nǐ xiǎoshēng diǎn, gébì de rén ěrduo kě líng le.
Keep your voice down — the person next door has very sharp ears.
兔子的耳朵长长的,特别可爱。
Tùzi de ěrduo cháng cháng de, tèbié kě'ài.
Rabbits have long ears; they're especially cute.