英文關鍵字
action
active
adult
adventure
atv
bike
boy
car
caucasian
child
day
dirty
drive
dust
enjoyment
extreme
fast
footpath
freedom
fun
gravel
happiness
hobby
horizontal
joy
motor
nature
outdoor
pass
person
quad
quadbike
race
ride
riding
road
safety
sand
sitting
son
speed
sport
summer
transportation
young