英和和英

the ground floor

the top floor

geological formations

floor-boards―flooring

floor-boards―flooring

spatter the floor

a tessellated floor

an Imperial court rank

a geological fault

scores on the floor

the down platform

the upper floor(s)

on the floor

a polished floor

the upper story

board over the floor

Stair landing

floor space

a geographical feature called a step fault

mop a floor

the down staircase

a stratum of rocks, called Permian system

an interfacial layer

a sediment called continental sediment

unswept floors

a floor covering

low place

a basement

the bottom rung

high place (raised or slightly elevated place of earth's surface)