1·Each building had fireproof drywalls to protect the stairwells.
每座大楼都有防火干板墙保护其楼梯井。
—— 《柯林斯英汉双解大词典》
2·Thomas Tauke, the head of public policy for Verizon, a telecoms operator, has compared existing regulation to a mystery house, full of empty rooms and dead-end stairwells.
威瑞森公共政策部门主管托马斯•托可，将现存的监督比作充满空房间与死楼梯井的神秘屋。
3·Floor evacuations should be made by the stairwells.
应通过楼梯井进行楼层疏散。
4·At the office, they slink into hallways, bathrooms, and stairwells.
在写字楼里，他们灰溜溜躲进过道、洗手间、楼梯井。
5·Officials with the Kinsmen Club said chairlifts will be installed in the stairwells on each floor to assist residents.
亲情俱乐部的工作人员说每层楼的楼梯井中会安装椅式提升机以帮助人们上下楼。