英文關鍵字
activity
architecture
backhoe
big
blue
borrow
bucket
build
bulldozer
construct
construction
contractor
crawler
development
dig
digger
duty
earth
engineering
equipment
excavation
excavator
field
heavy
hydraulic
industrial
industry
land
large
loader
machine
machinery
mover
outdoor
perspective
power
realty
sand
scoop
shovel
site
sky
soil
sunny
timelapse
tractor
transport
vehicle
work
yellow