How To Use Grind down In A Sentence

"We use half a tank getting up the Kaimais and then we have the slow grind down the other side, " he said.
Then we see skilled skaters perform a thirty foot rail-grind down a huge concrete stairway; we watch them laugh as Knoxville, obviously unskilled and unpracticed, takes a header into the sidewalk attempting the same thing.
The rice will grind down into flour.
There's a way to actually grind down and prepare the flour, so that you promote the enzymes within the plant to breakdown the cyanide precursors.
The rice will grind down into flour.

Then we see skilled skaters perform a thirty foot rail-grind down a huge concrete stairway; we watch them laugh as Knoxville, obviously unskilled and unpracticed, takes a header into the sidewalk attempting the same thing.
For here again it is because the mouth fails to perform its office and fails even more completely-for birds have no teeth at all, nor any instrument whatsoever with which to comminute or grind down their food-it is, On the Parts of Animals
Some people actually shave or grind down parts of their skates so that they can fit larger wheels.
You can grind down the whole universe into a powder and you will find no single atom of justice. Times, Sunday Times
Unaided by some kind of equipment, a person cannot grind down the surface of a rock; that's why a field geologist carries a hammer.
Still another major maintenance problem, he explains, has to do with the planers or milling machines used to grind down asphaltic-concrete pavements in preparation for the laying down of a new wearing course.