on the first floor 中为什么要用“first”序数词呢
on the first floor 中为什么要用“first”序数词呢
"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?
on the first floor是什么意思
at the first floor还是on the first floor
序数词的介词如:the first floor前加on还是in?
The canteen is on the first floor.
The supermarket is on the first floor.
the,on,is,the,canteen,first,floor
it‘s on the first floor
Is your classroom on()floor?one first the first
4.The music room is on the first floor.(对on the first floor提