teeth
歯はきれいに磨きなさい。
Brush your teeth well.
彼の歯は真珠のように白い。
His teeth are as white as pearls.
必ず、歯は磨きなさい。
Be sure to brush your teeth.
歯は磨いたの？
Did you brush your teeth?
ライオンの歯は鋭いからね。
Lions have sharp teeth, you know.
彼の歯は煙草の吸いすぎで黄色くなっている。
His teeth have turned yellow from smoking too much.