英文關鍵字
adjust
adjusting
adjustment
adult
bicycle
bike
build
business
carefully
change
concentrate
concentration
crank
derailleur
dirty
disc
equipment
fix
fixing
garage
gears
hand
job
machine
maintenance
man
mechanic
metal
millennial
minor
mountain
pedal
repair
screwdriver
shop
skill
small
sport
steel
store
technical
technology
tire
tools
turn
watching
wheel
work
worker
workshop