英文關鍵字
background
beautiful
beauty
blue
bright
cable
cloud
cold
color
dawn
electric
electrical
electricity
field
forest
grass
lake
landscape
leaves
lines
meadow
natural
nature
orange
outdoor
panorama
reflection
river
romance
romantic
sky
skyline
space
summer
sun
sunlight
sunrise
sunset
surface
tranquil
transmission
travel
tree
twilight
water
waves
yellow