英文關鍵字
acoustics
auto
autoworld
baikalskaya
base
car
change
check
color
digital
display
down
electrical
electronic
fix
looking
moscow
music
nobody
part
pattern
phonics
power
radio
receiver
repair
russia
sample
shop
show
song
sound
speaker
stereo
style
support
switch
system
technical
technological
technology
test
tilt
tool
tracks
truck
vehicle
window
working