英文關鍵字
bird
duck
duckling
winter
nature
water
swims
animal
dives
lake
river
feather
pond
alone
cold
gray
outdoor
ice
little
beautiful
frozen
day
snow
reflection
frost
swimming
waterfront
white
melt
small
waterfowl
funny
europe
reeds
searching
float
peaceful
baby
purity
goose
one
fast
wild
freeze