Their teeth were flat.

他们的牙齿是平的。

youdao

The married women of Shitamachi maintained the custom of blackening their teeth.

下町的已婚妇女保留了染黑牙齿的习俗。

《柯林斯英汉双解大词典》

Pipe smokers sometimes wear down the tips of their teeth where they grip their pipes.

抽烟斗的人用牙齿咬住烟斗，有时会把牙齿尖磨平。

《柯林斯英汉双解大词典》

They swallowed it whole. Their teeth were used to rip the meat or plants into mouth-sized pieces, but were not used for chewing.

VOA: special.2010.06.04

Other concerns include an increased risk of ear infection, hearing loss and problems with their teeth.

VOA: special.2009.12.22

So young children should be carefully supervised when they brush their teeth.

VOA: special.2009.03.11

For more than three months they have not brushed their teeth or taken a shower.

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In other displays, men used their teeth to pull cars, lift bicycles and balance plows.

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When they brushed their teeth, most of the time they spit in the toilet.

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