英文關鍵字
above
aerial
altitude
animal
beautiful
beauty
calm
channel
danube
delta
earth
environment
flight
fly
flying
forest
grass
green
holiday
lake
land
landscape
motion
movement
natural
nature
panorama
pond
reed
reflection
reserve
river
scenery
season
sky
skyline
summer
sunset
swamp
tourism
travel
vacation
vegetation
view
water
wetland
wilderness
wildness
willow