英文關鍵字
erupt
eruption
faithful
flow
geyser
high
mountains
national
old
park
pre
pressure
ready
smoke
steam
water
yellowstone
ynp
英文關鍵字
erupt
eruption
faithful
flow
geyser
high
mountains
national
old
park
pre
pressure
ready
smoke
steam
water
yellowstone
ynp