英文關鍵字
alloy
around
bicycle
big
bike
biker
cold
cycle
cyclist
dirt
endurance
enthusiasm
extreme
fad
fat
fix
france
glasses
hardship
helm
helmet
ice
interest
liberty
man
motion
mountain
offroad
outdoors
physical
pro
professional
refreshment
ride
riding
river
slow
snow
snowy
sport
sportsman
stabilization
tire
tough
tour
trick
winter
young