英文關鍵字
action
active
activity
adrenaline
adventure
athletics
bicycle
bicyclist
bike
biker
biking
bmx
challenge
compete
competition
cross
cycle
cycler
cycling
cyclist
enduro
extreme
fitness
forest
freedom
healthy
man
outside
physical
practice
race
racing
riding
road
skillful
sportive
sports
stunt
track
trail
training
transport
trial
vehicle