staircases
n. 楼梯（staircase 的复数）
例句
We have fully functional smoke alarms on all staircases.
我们在所有楼梯上都装有运转完全正常的烟雾报警器。
《柯林斯英汉双解大词典》
The staircases change, remember?
楼梯会改变，记得吗？
We would live in a large two-story house with floors and staircases made of wood.
我们将住进一幢两层的大房子，地板和楼梯是木制的。
