英文關鍵字
agriculture
alternative
angle
beautiful
blue
clean
cloud
clouds
color
colorful
day
ecological
ecology
electric
electricity
energy
environment
environmental
exterior
farm
field
fluffy
generate
generator
green
industrial
industry
landscape
lapse
lens
moving
nature
people
power
production
propeller
renewable
sky
summer
sun
sunny
sustainable
technology
time
turbine
white
wide
wind
windmill