staircases [s'terkeɪsɪz]

例句:

• We have fully functional smoke alarms on all staircases.
  我们在各层楼梯都安装有完全可用的烟雾警报器。
  
• A number of staircases ascend from the cobbled streets onto the ramparts.
  一段石阶从鹅卵石路上一直向上直通城墙。
  
• A slender superstructure was dictated with gently sloping approaches rather than staircases.
  细长的上部结构,带有微缓斜坡接坡,比布置阶梯为优.
  
• I visit local blocks of flats and run up and down staircases.
  来自THETIMES
• We had all served as footmen, running plates along corridors and up staircases.
  来自NEWYORKER
• Washrooms, staircases and lifts are located in the center of each floor to enhance efficiency.
  来自CNN