英文關鍵字
240
700
1080
1920
action
adult
adults
africa
aggression
amphibius
animal
animals
botswa
botswana
chobe
color
day
delta
display
fighting
film
format
frames
full
herbivore
high
hippopotamidae
hippopotamus
image
length
locomotion
mammal
motion
mouth
movement
nature
nex
okavango
open
outdoor
outdoors
people
per
profile
river
second
slow
sony
speed
threat
two
ungulate
video
water
wide
wildlife
with