英文關鍵字
abstract
aerial
architecture
background
blue
brigade
builders
building
cement
concrete
constructing
construction
engineering
equipment
excavation
ferroconcrete
formwork
foundation
frame
groundworks
industrial
industry
labor
large
material
men
modern
move
nature
new
outdoors
pattern
project
reinforcement
scaffolding
site
steel
structure
team
technology
texture
under
work
worker
yellow