英文關鍵字
action
activity
adult
bicycle
bike
biker
biking
bmx
boy
city
culture
cycle
cyclist
dreadlocks
exhilaration
extreme
fun
high
hobbies
jeans
jump
kick
leisure
males
men
motion
one
outdoors
park
people
person
pursuit
race
ramp
recreational
rider
riding
skate
sky
space
sport
spring
stunt
sun
sunlight
sunny
teenager
walk
young
youth