C1 a set of stairs inside a building, usually with a bar fixed on the wall or onto vertical poles at

中文解释

（建筑物内通常带有扶手的）楼梯 She descended the sweeping (= long and wide) staircase into the crowd of photographers and journalists. 她走下又长又宽的楼梯，来到摄影师和记者中间。