英文關鍵字
activity
adjusting
adult
background
beard
bicycle
bicyclist
bike
brake
caucasian
chain
cycling
defect
disc
fix
gear
hand
holding
installing
key
leisure
lifestyle
maintenance
male
man
mechanic
metal
mountain
pedal
people
person
repairing
room
saddle
service
serviceman
spoke
tire
tool
toothy
transport
tuning
tyre
wall
wheel
white
working
workshop
young