英文關鍵字
algae
amphibian
animal
animals
beak
bird
contraction
dirt
dirty
duck
ducks
environment
family
fish
flock
fresh
freshwater
game
green
hunting
lake
life
mammal
movement
nature
park
plants
pollution
pond
pool
reflection
reptile
reserve
ripples
river
sewage
stone
street
summer
swamp
swampy
swim
swimming
swims
thirst
three
tina
transparent
water
wild
wildlife
yellow
zoo