英文關鍵字
349
backhoe
brown
bucket
build
bulldozer
capacity
caterpillar
clouds
construction
contractor
deep
development
diesel
dig
digger
dirt
earth
earthmoving
equipment
excavate
excavation
excavator
gold
ground
heavy
hydraulic
industrial
industry
land
machine
machinery
mechanical
mover
operating
pit
power
sand
shovel
site
sky
soil
tool
tractor
transport
vehicle
work
worker
yellow