英文關鍵字
antarctica
blue
cold
glacier
global
ice
icecaps
melt
melting
north
plate
pole
shelf
shelves
south
warming
warmth
white
winter
英文關鍵字
antarctica
blue
cold
glacier
global
ice
icecaps
melt
melting
north
plate
pole
shelf
shelves
south
warming
warmth
white
winter