機器
architecture
assembling
assembly
background
begin
beginning
block
border
brick
brown
car
cement
cobble
cobblestone
concrete
construction
design
entrance
equipment
formwork
gravel
gray
ground
industrial
industry
infrastructure
line
making
material
natural
new
outdoor
pavement
paving
reconstruction
road
sidewalk
stone
street
surface
tile
tool
urbane
walkway
way
work