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- 牙医检查了她的牙，未见有龋齿。
The dentist could detect no decay in her teeth.
- 有些人睡觉时磨牙齿。
Some people grind their teeth while they are asleep.
- 我牙疼，因为我的一颗牙齿上有个洞。
I have a toothache because there is a cavity in one of my teeth.
- 我拿起一张宣传保护牙齿的传单。
I pick up a leaflet about the care of teeth.
- 他的牙齿冷得直打颤。
His teeth chattered uncontrollably because of the cold.
- 我咬牙切齿愤怒已极。
I was gnashing my teeth with rage.
- 他正用一根牙签剔除牙齿间的饭渣。
He is removing bits of food stuck between the teeth with a toothpick.
- 狗露出了牙齿。
The dog bared its teeth.
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