英文關鍵字
africa
african
amphibious
amphibius
animal
aquatic
big
body
clip
conservation
dangerous
ecology
environment
family
footage
group
habitat
herbivore
hippo
hippopotamus
hippos
huge
kruger
land
mammal
massive
motion
national
natural
outdoor
outdoors
park
rest
resting
safari
south
southern
unspoiled
video
wild
wilderness
wildlife