英文關鍵字
animal
atratus
australia
background
beak
beautiful
beauty
big
bird
black
blue
calm
close
color
cygnus
dark
elegant
feather
feathers
its
lake
majestic
natural
nature
neck
one
outdoor
park
peaceful
plumage
pond
preening
red
single
space
spring
swan
sweet
wallpaper
water
wild
wildlife
wing
wings
zoo