英文關鍵字
duck
pond
lake
ice
active
akademgorodok
amusing
birds
calm
climate
cloudy
cold
curious
cute
ecology
environment
flock
following
chain
footprint
frazil
freeze
freezingover
fresh
water
frost
frosty
frozen
global
cooling
group
landscape
move
natural
nature
novosibirsk
overcast
rural
russia
scenery
scenic
siberia
slosh
slush
trace
walk
wild
wildlife