英文關鍵字
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africa
african
amphibious
animal
animals
aquatic
attract
background
banks
big
brown
common
dangerous
fauna
gathered
getting
grass
green
hippo
hippopotamus
hippos
lake
lakes
large
mammal
national
natural
nature
outdoor
park
river
rivers
safari
safaris
savannah
savannahs
south
tourism
water
wild
wilderness
wildlife
young
zoo