不要
abstract
accessory
addiction
background
cable
cell
cellphone
coil
communication
commutation
concept
connect
connection
cord
cordless
development
device
digital
electrical
electronic
equipment
freedom
future
gadget
inconvenience
innovation
invention
messy
mobile
modern
needless
object
old
phone
progress
smart
smartphone
solution
table
tangle
tech
technology
transition
usb
useless
using
wire
wireless
wooden