英文關鍵字
bulldozer
construction
development
dig
digger
drainage
drill
earth
equipment
excavating
excavation
excavator
ground
groundworks
heavy
industrial
industry
loader
machine
machinery
moving
pipes
sand
sewage
sewer
shovel
site
vehicle
work
yellow
英文關鍵字
bulldozer
construction
development
dig
digger
drainage
drill
earth
equipment
excavating
excavation
excavator
ground
groundworks
heavy
industrial
industry
loader
machine
machinery
moving
pipes
sand
sewage
sewer
shovel
site
vehicle
work
yellow