noun 下载 🔗分享 楼梯井，楼梯间 A shaft in a multi-story building enclosing a stairway or staircase. Examples : ""During the fire drill, we all walked down the stairwell to the ground floor." " 火灾演习时，我们都走楼梯间下到了一楼。 architecture building 与AI对话词汇游戏阅读练习
