英文關鍵字
aquatic
arvalis
background
beautiful
beauty
closeup
communication
concert
croak
croaking
day
digitalis
fauna
fen
forest
frog
frogs
habitat
hidden
lake
landscape
leaf
life
marsh
marshland
mating
meadow
moor
movie
natural
non
pairing
rana
reptile
ritual
river
scene
scenic
singing
sings
sky
slippery
slough
song
spring
swamp
toad
tranquil
travel
urban
video
view
water
wet
wilderness