機器
ability
activity
architecture
asian
background
black
build
capability
concrete
construct
construction
create
derrick
development
engineering
foundation
hat
high
human
industrial
industry
infrastructure
labor
man
material
people
pillar
plans
profession
project
properties
silhouette
site
skill
steel
steel rod
strength
structure
thai
unfinished
urban
walls
white
worker
working