While sitting, place a hand towel on a smooth floor, such as wood or tile.

I appeared in a pitch black room with dead air and a smooth floor.

They seemed to have no difficulty with the smooth floor.

Finally he saw something other than a smooth floor.

He walked in and stumbled on the smooth floor for no reason at all, caught himself.

He turned left and sped across the smooth floor of the hall.

The bomb could not be reached through the smooth floor.

About four meters down, there was a smooth flat floor.

There was no chair, so he sat on the smooth ancient floor, back against the wall.

I watched him slide across the smooth floor, his face red with anger.