英文關鍵字
animal
background
beautiful
beauty
bird
birds
calm
day
duck
eating
elegance
environment
family
feather
feeds
flight
floating
flock
food
freedom
grace
graceful
group
lake
light
love
nature
neck
pond
reflection
relaxation
river
romance
spring
sunlight
surface
swan
swans
swimming
tranquil
water
wave
white
wild
wildlife
wing
wings
winter