機器
activity
apartment
architecture
block
blue
buildings
built
cement
concrete
construction
crane
development
district
elevation
engineering
equipment
exterior
form
frame
growth
heavy
high
home
housing
industry
machinery
modern
new
ownership
part
picking
pole
raising
reinforcement
safety
scaffold
screws
site
sky
skyscraper
steel
strong
structure
tall
tower
unfinished
up
upgrade
urban