英文關鍵字
aerial
antenna
arm
background
blue
broadcast
builder
building
built
cell
clothing
communication
communications
construction
contractor
day
dish
electrical
engineer
engineering
equipment
foreman
hardhat
helmet
house
industrial
industry
install
installing
male
man
mobile
network
occupation
people
person
phone
radio
roof
satellite
signal
site
sky
technology
telecommunication
television
transmit
wireless
work
worker