英文關鍵字
abstract
are
background
bicycle
bicycles
bike
bikes
blur
circle
close
closeup
color
competition
contains
cruiser
dark
design
different
evening
exterior
first
follow
frame
from
green
hub
left
light
line
motion
night
pair
people
production
race
red
right
rolling
second
shine
speed
spin
spinning
spokes
the
through
transportation
turning
two
vehicle
walked
walking
wheels