at the floor 和on the floor的区别?

at the floor 和on the floor的区别? at the first floor还是on the first floor at the second floor 还是on the second floor on the floor On The Floor 歌词 on the floor是什么意思 on the second floor 与 at the second floor 有什么区别? 请问on the second floor 与 at the second floor 有什么区别? 是用on the first floor 因为floor是名词 那at呢 是用on the first floor 因为floor是名词 那at呢? The canteen is the first floor.A.onThe canteen is the first floor.A.on B.at C.in填空 speaking on the floor of senate...on the floor four-on-the-floor是什么意思? 翻译sit on the floor 4 On The Floor 歌词 on the floor 空间链接 on the first floor是什么意思 get on the dance floor