Her eyes rolled, and she started to sink to the floor.
He stepped away without looking and heard them sink to the floor behind him.
My legs would no longer support me, and I sank to the floor.
Richard sank to the floor, feeling too sick to stand.
He sank to the floor, sitting with his back against rock, giving himself up to it.
If the door hadn't been there to catch me, I would have sunk all the way to the floor.
He sank to the floor, and began to roll toward the door.
John had to sit down and sank right to the floor.
His feet slid out from under him, and he sank to the floor.
At once he began to come down with me as I sank slowly to the floor.