英文關鍵字
alert
alpha
animation
announce
announcement
attention
background
ball
broadcasting
bubbles
channelalpha
closeup
cloud
communicate
communication
concept
design
digital
equipment
expression
information
isolated
liquid
loud
loudspeaker
marketing
mask
media
megaphone
message
news
promotion
propaganda
public
purple
sale
screaming
screengreen
shout
shouting
sign
social
speak
speaker
speech
technology
voice
volume
web