英文關鍵字
bicycle
frame
repair
line
symbol
bike
service
complex
setting
research
fix
broken
details
cogset
linear
background
lined
maintenance
seat
chain
handlebar
elimination
shifters
pedals
replacement
pads
disc
brakes
cleaning
adjustment
rods
fork
straightening
shortening
icon
motion
graphic
animation
pictogram
hd
animated
item
sign
color