英文關鍵字
abstract
actions
activity
aiming
backgrounds
bandwidth
broadcasting
button
change
changing
channels
computer
control
crystal
display
electrical
electronics
entertainment
equipment
finger
form
hand
horizontal
household
human
industry
key
keyable
keypad
lifestyle
liquid
matte
off
old
pattern
push
pushing
religious
remote
static
switches
symbol
technology
television
touching
video
watching
with
zapping