英文關鍵字
amphibian
anatomy
animal
aquarium
aquatic
biology
cartilaginous
culture
depth
eggs
feed
fisherman
fishing
flipper
fluvial
food
freshwater
frog
life
long
marine
migration
oceanarium
poison
poisonous
predator
ranidae
river
set
species
striped
stripes
swimming
tadpole
toad
tongue
water
wild
wildlife
yellow