英文關鍵字
algae
amphibia
amphibian
amphibians
amphibious
animal
animals
aquatic
bog
brook
close
conservation
day
duckweed
fog
frog
frogs
grass
green
habitat
leaf
life
lily
live
marsh
meadow
morass
mud
natural
nature
one
ooze
outdoors
plant
pond
princess
shining
slime
spring
stream
summer
swamp
tadpole
toad
turbid
water
wetland
wild
wildlife