英文關鍵字
action
adventure
along
bicycle
bike
biker
biking
brow
caucasian
clothing
coming
curve
cycle
cycling
danger
dangerous
dirt
distance
downhill
drop
excitement
exercise
exercising
exhilaration
extreme
ferns
forest
freedom
freeride
fun
green
healthy
helmet
hill
jump
lifestyle
lifestyles
male
men
motion
mountain
mtb
nature
off
one
orange
outdoors
over
pastime
person
recreation
riding
safety
slow
sport
sports
stunt
sunlight
teenager
track
trails
trees
vibrant
video
vitality
wheel
white
woods
young