英文關鍵字
act
africa
african
amphibius
animal
animals
aquatic
baby
back
bank
big
branch
chew
chewing
couple
deer
dive
ecology
enough
environment
food
game
green
hanging
herbivore
hippo
hippopotamus
hippos
inthailand
just
large
lazy
mammal
many
monkey
monkeys
mouths
nature
outdoor
play
playing
reserve
ripple
river
rock
safari
scenery
selous
sleep
society
southern
summer
swallow
swim
tanzania
thailand
their
tired
together
tongue
travel
tree
water
wild
wilderness
wildlife
young
zoo