英文關鍵字
agriculture
bucket
build
builder
built
business
construction
contractor
development
dig
digger
dirt
earth
earthmover
earthwork
environment
equipment
excavate
excavation
excavator
foundation
ground
heavy
hydraulic
industrial
industry
irrigation
land
loader
loading
machine
machinery
mover
outdoor
pit
quarry
road
sand
scoop
shovel
site
soil
structure
technology
tractor
transport
truck
vehicle
work