n.

an architectural partition with a height and length greater than its thickness; used to divide or enclose an area or to support another structure

"the south wall had a small window"; "the walls were covered with pictures"

an embankment built around a space for defensive purposes

"they blew the trumpet and the walls came tumbling down"

同義詞：rampartbulwark

anything that suggests a wall in structure or function or effect

"a wall of water"; "a wall of smoke"; "a wall of prejudice"; "negotiations ran into a brick wall"

a masonry fence (as around an estate or garden)

"the wall followed the road"; "he ducked behind the garden wall and waited"

(anatomy) a layer (a lining or membrane) that encloses a structure

"stomach walls"

同義詞：paries

a vertical (or almost vertical) smooth rock face (as of a cave or mountain)

a layer of material that encloses space

"the walls of the cylinder were perforated"; "the container's walls were blue"

a difficult or awkward situation

"his back was to the wall"; "competition was pushing them to the wall"

1. The walls of the house were painted white.
   房子的墻壁被涂成了白色。
2. They built strong walls around the city for protection.
   他們在城市周圍建造了堅固的墻壁以作防御。