英文關鍵字
child
street
scooter
push
leisure
activity
people
riding
outdoor
sports
boys
fun
pursuit
recreational
girls
action
road
asphalt
exercising
urban
tree
adult
family
happiness
playing
learning
life
small
speed
assistance
man
care
city
protection
teaching
togetherness
preschool
danger
friendship
parent
pedestrian
outside
walk
cold
dress
building
fence
day
fur