on the third floor。例句：他们的房间在三楼，房间的窗户可以俯瞰运动场。Their room was on the third floor, its window overlooking the sports ground.
I just remembered-i was in intensive care on the third floor.
The library is on the third floor, at the east endof the building.
Federal officers arranged for a call to the resident of a third-floor apartment in this seaside city to say that his storage locker had been broken into.
Their room was on the third floor, its window overlooking the sports ground.