第三人稱單數(shù)：floors；現(xiàn)在分詞：flooring；過去式：floored；過去分詞：floored。
例句：
There were papers lying around all over the floor.
地板上四處散亂著文件。
The floor of the car was covered in cigarette ends.
小轎車內(nèi)底板上滿是煙蒂。
This floor has been designated a no-smoking area.
這樓層已定為無煙區(qū)。