機器
activity
build
construction
deep
deforestation
dig
digging
dirt
dirty
ditch
dug
earth
equipment
estate
excavate
excavation
excavator
forest
ground
growth
hole
industrial
industry
job
land
landscape
machinery
nature
orange
outdoor
outside
pit
plastic
power
professional
real
red
room
root
sand
site
soil
sunlight
sunny
tree
trench
up
work
yellow