英文關鍵字
blackout
breaker
brighten
bulb
changer
circuit
cutout
dark
device
disjunctor
disturbance
electric
electricity
energy
evening
finger
glow
hand
help
home
house
household
illuminate
lamp
light
lightbulb
lightswitch
man
night
nightlight
object
off
outlet
outside
plug
power
push
room
safety
saving
switch
turning
wall
white
windows