英文關鍵字
1080p
1920x1080
activity
background
backhoe
building
bulldozer
construction
dig
digging
earth
equipment
excavation
excavator
hdv
heavy
industrial
industry
light
loader
machine
machinery
mine
mover
occupation
orange
red
scoop
silhouette
site
sky
sun
sunset
truck
vehicle
work
working
yellow