英文關鍵字
male
green
frog
rana
clamitans
lithobates
night
nocturnal
dark
float
wetland
pond
lake
summer
season
song
call
calling
sing
advertisement
attract
mate
reproduction
breeding
outdoors
wildlife
fauna
amphibian
gray
treefrog
trill
trilling
ohio
north
america
natural
wet
water
aquatic
warm
animal
nature
eye
macro
swamp
environment
closeup