The rest of the shell is rolled towards the tooth in an anticlockwise direction, in order to remove it.

为了脱身，其余的壳就会以逆时针方向绕着牙齿旋转。

youdao

This will clean the rest of the tooth's side surface and brush the loosened bacteria away from and off of the tooth.

这样就能清洁牙齿表面的其它地方并把疏松的细菌从牙齿上去除掉。

youdao

Hob on the rest of the cutter tooth is thick teeth.

滚刀上其馀的刀齿都是粗切齿。

youdao

The rest of the shell is then rolled towards the tooth in an anticlockwise direction, in order to remove it.

ECONOMIST: Why some snails are left-handed