“grind down”造句，怎麼用grind down造句

It won't grind down any finer than this.

Mills used to use heavy stones to grind down the wheat into flour, now they use more modern machine.

Roll grinder a special lathe used to grind down or resurface rubber applicator rolls.

It would be necessary to "grind down" the size of these abutment teeth to prepare them for crowns.