电梯里的小屏幕有时会滚动通知：某栋某层正在维修，某个出口临时关闭。
The small screen in the elevator sometimes scrolls notifications: a certain floor in a certain building is under maintenance, a certain exit is temporarily closed.
The small screen in the elevator sometimes scrolls notifications: a certain floor in a certain building is under maintenance, a certain exit is temporarily closed.