His work was spread all over the floor.

　　他工作的材料攤了一地。

　　There is a fire exit on each floor of the building.

　　這棟建筑每層樓都有個(gè)消防通道。

　　The alterations should give us extra floor space.

　　這些改動(dòng)應(yīng)該使我們有更大的居住面積。