英文關鍵字
site
loader
machine
excavator
excavation
machinery
equipment
industry
heavy
construction
work
bulldozer
tractor
soil
vehicle
shovel
scoop
mining
backhoe
building
excavating
activity
power
ground
industrial
dig
digger
bucket
mine
transportation
engineering
working
dirt
urban
development
earth
workplace
transport
sky
sunset
excavators
hydraulic
technology
silhouette
sand
twilight
track
wheel
big
sun