英文關鍵字
stop
text
red
colour
blinking
light
effect
background
black
abstract
attention
ban
banner
blink
caution
concept
control
danger
digital
direction
glossy
glowing
icon
message
neon
night
entry
outline
restricted
road
sing
round
rule
safety
security
shine
sign
signal
slow
traffic
transport
transportation
usa
warning