英文關鍵字
balkans
blue
brazil
cable
cables
city
communication
connection
danger
electric
electrical
electricity
energy
homes
industrial
industry
infrastructure
internet
kosovo
line
lines
many
mess
messy
network
old
overhead
pillar
pole
power
pylon
rope
services
sky
steel
street
supply
tangle
tangled
technology
telegraph
telephone
tower
transmission
urban
voltage
wire
wires