I was deep inside the main floor of a large department store.

Thus we started up toward the main floor of the building.

The only other room on the main floor is the kitchen.

Stand in the center of the main floor and look up.

There was no one on the main floor of the church.

People on the main floor followed them with their eyes.

Another camera, just over the door to the main floor.

As a result, the main floor is full of light.

The door opened on the main floor and the men got out.

They had come to the very center of the main floor.