On which floor do you live?

我不愿意住在第十层楼。

youdao

Excuse me, could you tell me on which floor I can buy stationery?

对不起，能告诉我哪层楼能买到文具吗？

youdao

On which floor is the Organizing Committee of the 17th World Cup Football Championships located, please?

请问第17届世界杯足球赛组委会设在几楼？

youdao

You can do that on email, you can do that in my office, which is downstairs on the first floor of this building, in LC-109.

发邮件，来办公室找我，我的办公室在这栋楼的1层，LC109室。

耶鲁公开课 - 现代诗歌课程节选

And that there was no longer any difference between what once had been my father and the table he was lying on, or the floor on which the table stood, or the wall socket beneath the window, or the cable running to the lamp beside him.

NEWYORKER: Total Recall

Mr Gill stayed in hospital with his wife and, with no other facilities available to him, had to sleep on the floor which he described as "one of the hardest night's sleep".

BBC: Simon Gill

Mr Magee, aged 29, has also applied to the council, which offered him a flat on the 22nd floor of an undesirable estate, which he rejected on the grounds of safety.

BBC: Motorway