英文關鍵字
animal
antarctic
antarctica
arctic
base
berg
cold
cry
environment
float
floe
glacier
global
hydrurga
ice
iceberg
idyllic
isolated
landscape
leopard
leptonyx
mammal
marine
melting
mountain
nature
north
ocean
pack
polar
pole
sad
sea
seal
sleepin
sleeping
snow
south
teeth
travel
waddling
water
white
wildlife
winter
yawning