柯林斯词典staircase /ˈstɛəˌkeɪs/ (staircases) 1. N-COUNT A staircase is a set of stairs inside a building. (建筑物内的) 楼梯通道 They walked down the staircase together. 他们一起沿楼梯通道往下走。 返回 staircase剑桥词典a set of stairs inside a building , usually with a bar fixed on the wall or onto vertical poles at the side for you to hold on to （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。 返回 staircase