英文關鍵字
action
agent
authority
band
calling
car
caucasian
communication
country
countryside
dual
duty
emergency
expedition
hand
hide
holding
incar
interior
jeep
long
man
mic
microphone
mobile
motion
offroad
one
outdoors
protection
protocol
radio
real
rescue
road
safe
safety
speaker
suv
talkie
talking
technology
transceiver
transmitter
two
vehicles
walkie
way