英文關鍵字
animal
animals
bird
birds
branch
branches
breaking
cold
danube
december
delta
fish
fishes
flock
flocks
for
frozen
gul
gull
gulls
guls
ice
january
lake
lakes
little
looking
natural
nature
river
romania
seagul
seagull
seagulls
seaguls
season
snow
snowing
water
wild
winter