英文關鍵字
accident
alarm
alert
anxiety
automatic
burn
buzzer
call
catastrophe
ceiling
closeup
control
danger
detector
device
disaster
domestic
drills
electronic
emergency
equipment
fire
flash
help
hooter
horn
household
insurance
light
object
office
prevention
protect
red
reek
room
safety
secure
security
sensor
signal
siren
smoke
system
temp
temperature
trouble
warn
white