英文關鍵字
animal
animals
atratus
background
beak
bird
birds
black
children
cygnets
cygnus
dive
feathers
feed
food
lake
mother
newborn
nurture
peaceful
protect
raise
red
swan
swanling
swans
swimming
water
weed
young
英文關鍵字
animal
animals
atratus
background
beak
bird
birds
black
children
cygnets
cygnus
dive
feathers
feed
food
lake
mother
newborn
nurture
peaceful
protect
raise
red
swan
swanling
swans
swimming
water
weed
young