英文關鍵字
animal
aquatic
background
beak
beautiful
beauty
bird
birdwatching
blue
calm
close-up
cygnus
elegance
family
feather
feathered
feathery
floating
graceful
head
lake
landscape
large
mute
natural
nature
neck
olor
orange
outdoor
park
pond
reflection
ripple
river
romance
scene
single
spring
surface
swan
swan's
swim
symbol
water
white
wild
wildlife
wing
young