英文關鍵字
affection
anatidae
animal
beak
beautiful
bird
black
care
child
cygnet
cygnus
daughter
day
devotion
family
father
fauna
feather
feed
float
fowl
friendship
funny
hand
hunger
hungry
lake
love
melancoryphus
migratory
nature
necked
outdoor
penner
pond
relations
relationship
sky
son
swan
swim
together
two
water
waterfowl
webfoot
weekend
white
wild
wildlife