英文關鍵字
action
adrenaline
around
atv
boy
caucasian
cloud
copyspace
countryside
day
drive
driver
dust
excitement
exciting
fast
four
fun
glasses
guy
hobby
joy
leisure
machine
man
motor
person
pillar
protected
quad
quadbike
recreation
ride
rider
rise
round
sky
speed
sport
stand
transportation
trees
young