We were working on the eleventh floor.

我们在第11层工作。

《柯林斯英汉双解大词典》

I live on the eleventh floor.

我住第十一层楼。

youdao

He works on the eleventh floor of this building.

他在这栋楼的11楼工作。

youdao

He works on the eleventh floor of this building.

他在这栋楼的11楼工作。

youdao