英文關鍵字
adjusting
assemble
assembling
bicycle
bike
broken
busy
carefully
cycle
cyclist
dirty
equipment
fix
fixing
gear
gloves
greasy
guy
hand
installing
instrument
maintenance
male
man
mechanic
mechanical
mechanism
metal
occupation
part
person
profession
professional
repair
repairer
repairman
screw
service
serviceman
spoke
tire
tool
wheel
work
worker
workshop
wrench
young