英文關鍵字
background
bad
black
broken
burn
burnt
cable
circuit
close
concept
contact
damage
danger
dangerous
electric
electricity
emergency
energy
failure
fire
flame
grounding
hot
insurance
interval
irresponsibility
light
lights
melt
melts
old
overload
overloaded
plastic
power
problem
protection
risk
safety
service
shock
short
smoke
spark
started
switch
system
the
there
time
voltage
wall
wallpaper
was
wire