英文關鍵字
pigeon
bird
pigeons
nature
wild
cable
wildlife
line
wire
electrical
current
energy
communication
voltage
energetic
cables
transmission
feather
beak
wing
breeding
feathers
birds
英文關鍵字
pigeon
bird
pigeons
nature
wild
cable
wildlife
line
wire
electrical
current
energy
communication
voltage
energetic
cables
transmission
feather
beak
wing
breeding
feathers
birds