耳

mimi o sumasu to, soto no oto ga kikoe ru

If I concentrate my ears, I can hear the outside noise.

mimi ga itai kara, byouin ni iku

My ears ache, so I'm going to the hospital.

mimi ga tooi kara, terebi no oto ga chisai te kikoe na i

My ears are far from perfect, so the TV volume is too small to hear.