英文關鍵字
anas
anatidae
animal
anseriformes
beautiful
beauty
bird
black
branches
brown
colorful
countryside
crystal
dead
dry
duck
ducks
environment
female
floating
flowing
germany
grass
gravel
green
lake
landscape
mallard
natural
nature
ornithology
outdoor
outdoors
park
plants
platyrhynchos
reflection
river
season
spring
summer
sunny
swimming
turquoise
water
wave
wild
wilderness
wildlife
wing
yellow