英文關鍵字
area
autumn
bulldozer
car
construct
construction
crowd
development
dirt
drop
dump
dumper
dumping
dust
duty
earth
earthworks
equipment
excavation
gravel
ground
industrial
industry
land
lift
lifting
lorry
machine
machinery
mining
moving
outdoor
pavement
paving
pickup
pile
pouring
raise
road
sand
site
soil
stack
tipper
transport
transportation
truck
trucking
unload
vehicle