staircaseKK [ˈstɛˌrkes] ｜ /ˈstɛˌrkeɪs/
GEPT 中級
B1noun
a set of stairs leading from one floor to another in a building or structure.
As she ascended the elegant marble staircase, she marveled at the intricate handrail design and the grandeur of the chandelier hanging above.
樓梯間；樓梯（整組）
C1noun
a series of steps that allow a person to move from one level of a building to another; a flight of stairs.
The fire escape staircase was narrow and steep, making it difficult for people to quickly evacuate the building during an emergency.
樓梯；一段梯級