英文關鍵字
air
alternative
blue
clean
cloudy
conservation
countryside
day
development
eco
ecology
electric
electrical
electricity
energy
environment
environmental
farm
field
generate
generation
generator
green
home
industrial
industry
landscape
meadow
mill
nature
plant
power
production
propeller
renewable
rotate
rotation
sky
small
station
sustainability
sustainable
technology
turbine
white
wind
windmill