floor

1.

the inside lower horizontal surface (as of a room, hallway, tent, or other structure)

同义词:flooring

2.

a structure consisting of a room or set of rooms at a single position along a vertical scale

同义词:level,storey,story

3.

a lower limit

同义词:base

4.

the ground on which people and animals move about

5.

the bottom surface of any lake or other body of water

6.

the lower inside surface of any hollow structure

7.

the occupants of a floor

8.

the parliamentary right to address an assembly

9.

the legislative hall where members debate and vote and conduct other business

10.

a large room in a exchange where the trading is done

同义词:trading floor

1.

surprise greatly; knock someone's socks off

同义词:shock,ball over,blow out of the water,take aback

2.

knock down with force

同义词:deck,coldcock,dump,knock down