上の階へ。の英語

the upper story

on a floor above

on a floor below

the upper stories

an upstairs room

the up staircase

to go upstairs

the head of the stairs

at the head of the stairs―at the landing

go upstairs

to get up two pair of stairs

on the top stair

the upper floor(s)

The upper story is reached by stairs.

to run upstairs

Let's go onto the top deck.

Please come down to the lower floor.

to be raised a grade in court rank

on the second story

at the top of a staircase

on or of upper floors of a building

take the lift to the top floor

intermediate floor just above the ground floor

to go［come］down two pair of stairs

He is downstairs.

live upstairs

to go downstairs―come downstairs

of a system of ranks, the higher ranks

He is upstairs.

I'm upstairs.