英文關鍵字
sidewalk
path
street
lined
gray
paving
slabs
city
infrastructure
pedestrian
walkway
walks
day
cloudy
outdoors
outside
pavement
ground
texture
stone
concrete
floor
tile
brick
road
urban
cobble
avenue
paseo
grey
footpath
way
cobbled
block
exterior
granite
pave
material
rock
row
construction
tiled
cobblestone
surface
masonry
line
outdoor
slab