英文關鍵字
activity
backhoe
blade
bucket
build
bulldozer
cast
construction
cut
development
dig
digger
dirt
dump
dumper
dusty
earth
equipment
excavate
excavating
excavation
excavator
gravel
ground
grub
heavy
hollow
hydraulic
industry
land
large
loader
machine
mine
mover
pit
pour
power
quarry
road
sand
scoop
shovel
soil
tractor
truck
vehicle
work
working