機器
遊び心のある
activity
baby
boy
bucket
bulldozer
car
child
childhood
construction
dig
digger
dirty
dump
educational
equipment
excavation
excavator
fun
happy
industrial
industry
joy
kid
kindergarten
learn
leisure
little
machinery
model
park
people
play
playground
preschool
sand
sandbox
sandpit
scoop
shovel
small
summer
toy
tractor
transport
transportation
truck
vehicle
work