Whatever they knocked down would not get up again soon.

The wall was then knocked down at the end of the show.

A few were in the process of being knocked down.

Then he knocked down the house and put up three more in its place.

And when you knocked him down, he always got up.

I tried to stop him, but he just knocked me down.

I was knocked down by a car and very nearly died.

I knew it before they had even knocked me down.

We can knock down the first one or the last two.

He is knocked down by a car while running around in fear.