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英文關鍵字
image
yellow
white
blue
illustration
bright
path
metal
protection
black
silhouette
graphics
symbol
icon
city
drawing
information
street
attention
safety
crossing
zebra
pointer
walk
warning
video
slow
daytime
beware
crosswalk
pedestrian
informing
informative
attracts
traffic sign
direction sign
video frame
for driver