stairn.楼梯
stair-step楼梯踏步
stairclimber爬楼梯器具
stair bearer楼梯段纵梁
stair flight楼梯段
stair nosing梯级凸缘
stair-like阶梯式
stair winder楼梯扇步
stair carpetn.铺在楼梯上的地毯
stair turret楼梯间塔楼
stair string楼梯梁