英文關鍵字
black
friday
sale
megaphone
advertising
promotion
blackboard
retail
business
discount
illustration
marketing
text
shopping
market
holiday
promo
lettering
letter
event
voice
sound
speaker
announce
audio
loud
message
announcement
loudspeaker
alert
shout
bullhorn
speech
communicate
scream
shouting
amplifier
talking
talk
drawing
advertisement
sketch
hand
drawn
information
screaming
chalkboard
chalk
board
green