英文關鍵字
adult
alarm
alert
ambulance
attention
beacon
beard
blinker
bulb
button
circling
danger
elderly
emercom
emergency
equipment
face
flasher
glass
grandfather
grey
hand
head
human
illumination
light
look
male
man
medical
motion
old
one
pensioner
person
police
reflection
rescue
retire
rotate
security
senior
service
sign
signal
spin
symbol
urgency
warn
watch