英文關鍵字
appliance
cable
caucasian
charge
charger
circuit
conceptual
connect
connection
connector
conservation
consumer
consumption
cord
current
danger
device
double
electric
electrical
electricity
energy
hand
hold
home
house
household
industry
insert
interior
mains
male
mobile
outlet
person
phone
pin
plastic
plug
power
socket
supply
technology
usage
usb
volt
voltage
wall
white
wire