wall-to-wall
adj, adv (of a floor-covering) that covers the whole floor of a room (指室内地面覆盖物)覆盖全部地面(的)
a ,wall-to-wall `carpet 铺满全部地面的地毯
a room carpeted wall-to-wall 全部地面铺有地毯的房间.
Up to now, historians have assumed that calendars came into being with the advent of agriculture, for then man was faced with a real need to understand something about the seasons.