英文關鍵字
action
activity
black
bucket
building
bulldozer
business
clay
close
concrete
digging
dirt
dredger
equipment
excavate
excavation
excavator
foundation
gravel
ground
grub
heavy
heavyduty
hydraulic
industrial
industry
land
loader
loading
machine
machinery
mover
moving
quarrying
road
sand
scoop
shovel
structure
sunlight
technology
tipper
tractor
transport
transportation
truck
working