英文關鍵字
air
architecture
atmosphere
blue
building
chimney
climate
clouds
coal
cold
color
colorful
condensation
countryside
day
dirty
ecology
energy
environment
environmet
fog
fuel
fume
health
heat
heating
heavy
home
house
incinerator
landscape
nature
nobody
norway
outside
ozone
pipe
pollution
power
refinery
roof
rooftop
sky
smog
smoke
stack
steam
sun
sunny
tall
tower
vapor