英文關鍵字
adult
amphibia
amphibian
animal
aquatic
background
beautiful
carnivore
close
closeup
color
common
environment
europe
european
eye
fauna
fresh
frog
green
lake
marsh
morning
natural
nature
pelophylax
plant
pond
pool
rana
reptile
reserve
resting
ridibundus
side
spring
springtime
summer
surface
swamp
toad
vegetation
water
wet
wild
wildlife
zoology