機器
activity
background
backhoe
big
cat
cats
claw
claws
close
construction
digger
dirt
dredge
dug
earth
equipment
excavation
excavator
farmer
fluffy
funny
furry
gray
ground
hand
heavy
hydraulic
industrial
industry
kitty
land
loader
machinery
mammal
metal
nature
outdoor
sand
scoop
shovel
site
sleeping
soil
steel
transportation
up
vehicle
wheel
work