The sharp parts of a comb or a saw are called teeth.

梳和锯尖锐部分叫作齿。

A carpenter's tools include saws, hammers, and screw-drivers.

木工工具包括锯、锤和旋凿。

A sawer saw a saw saw.

锯工看到锯在锯东西。

His father was toothing a saw.

爸爸正在为锯锉齿。

There's a gaudy big grindstone down at the mill, and we'll smouch it, and carve the things on it, and file out the pens and the saw on it, too.

锯木厂那有块又大又棒磨刀石，我们可以去把它偷来，在上面刻东西，另方面又可以在上面磨笔和锯。”