They were on the upper floor of the building.

他们在该建筑物的上层。

《柯林斯英汉双解大词典》

There is a good restaurant on the upper floor.

楼上有一家很好的餐馆。

《柯林斯英汉双解大词典》

All students have access to the Writing Center on the upper floor of this building.

所有学生都可以进入这栋楼上层的写作中心。

youdao

This allows more light and more river views for upper-floor apartments, and creates space for a large outdoor pool and several large outdoor decks.

WSJ: Well-Heeled Renters Find Tight Market

Guests arriving by car or cab check in at a lower motor lobby, where elevators can whisk them to their upper-floor rooms, bypassing its glitzy glass and marble main lobby fronting West Georgia Street, a major downtown thoroughfare.

BBC: Business trip: Vancouver

Yesterday sellers tried to break the 1395-1398 but could not break the upper floor.

FORBES: FedEx Slip Is A Bearish Stock Barometer