英文關鍵字
america
ash
cloud
disaster
ecuador
explosion
gases
geologic
geology
latin
mountain
mushroom
nature
power
powerful
pyroclastic
smoke
south
steam
strombolian
tungurahua
volcan
volcanic
volcano
volcanoe
英文關鍵字
america
ash
cloud
disaster
ecuador
explosion
gases
geologic
geology
latin
mountain
mushroom
nature
power
powerful
pyroclastic
smoke
south
steam
strombolian
tungurahua
volcan
volcanic
volcano
volcanoe