英文關鍵字
construction
site
quarry
excavator
building
mining
pit
sifting
machine
industry
work
sieve
break
soil
equipment
industrial
excavate
machinery
bulldozer
vehicle
earth
sand
shovel
tractor
build
digger
mover
road
dig
ground
development
loader
truck
activity
power
business
use
environment
worker
earthmover
foundation
landscape
engineering
job
aerial
view