英文關鍵字
42120
camera
construction
energy
engineering
equipment
forest
fossil
fuel
gas
gasoline
grass
green
hill
industrial
industry
iron
landscape
line
metal
mountain
moves
natural
nature
oil
outdoor
petrol
pipe
pipeline
pipes
power
rain
road
running
runs
seven
showing
steel
streams
summer
supply
technology
transportation
tree
tube
water