英文關鍵字
alarm
alert
button
emergency
fire
push
red
danger
equipment
press
safety
security
warning
protection
rescue
switch
wall
industrial
break
help
panel
safe
sign
urgency
building
system
accident
call
control
symbol
evacuation
firefighter
flame
glass
office
bell
business
concept
panic
hand
white
box
factory
device
siren
icon
service
stop
closeup
activate