英文關鍵字
amphibian
amphibius
and
animal
animals
cleaning
conservancy
conservation
dwelling
ecology
environment
hippo
hippopotamus
hippos
land
lick
licking
national
nature
parks
resting
salt
salty
sweat
water
wild
wildlife
英文關鍵字
amphibian
amphibius
and
animal
animals
cleaning
conservancy
conservation
dwelling
ecology
environment
hippo
hippopotamus
hippos
land
lick
licking
national
nature
parks
resting
salt
salty
sweat
water
wild
wildlife