He suffered torments from his aching teeth.

他牙痛得难受。

He picked his teeth with a toothpick.

他用牙签剔牙。

The man smiled, revealing perfect white teeth.

那个男人微笑着 ，露出雪白整齐的牙齿。

She clenched her teeth and refused to move.

咬紧牙关不肯挪动一步。

Parliament must grit its teeth and take action.

议会必须痛，采取行动。

The bandit bared his teeth in an insolent smile.

那匪徒龇牙咧嘴地狞笑。

She clenched her teeth when she was operated on.

在被动手术时咬紧了牙关。

My brother is fretful because he is cutting his teeth.

我的小弟弟直发脾气, 因为在长牙。

He’ll be gnashing his teeth when he hears that we lost the contract.

他要是听说我们丟了这份合同，准会气得咬牙切齿。

The dentist is treating my teeth.

牙科医生给我治牙。

They are closely related as lips and teeth.

他们唇齿相。

Some of her teeth were very badly decayed.

有些牙齿烂得很厉害。

He usually has a cigar vised in his teeth.

他通常用牙齿叼着一支雪茄。

Bacteria sticks to food debris in the teeth, causing decay.

细菌附着在牙缝中的食物残渣上，道致蛀牙。

The teeth on the gears mesh as they turn round.

转动时齿轮上的齿与齿相啮合。

He picked up a leaflet about care of the teeth.

他拾起一张宣传保护牙齿的传单。

His teeth were stained with nicotine from years of smoking.

他的牙齿因多年抽烟而被尼古丁染黄了。

Norma looked at the parcel and whistled softly through her teeth.

诺尔玛看着包裹，轻柔地哼起了口哨。

The dentist could detect no sign of decay in her teeth.

牙医在的牙齿上找不到蛀蚀的迹象。

13 deform root groove teeth were observed with macroscopy and microscopiy.

13个有畸形根面沟的上颌侧切牙,在放大镜、显微镜观察结构。