英文關鍵字
air
and
animal
animals
autumn
bird
common
crane
diepholz
eurasian
fall
field
flight
flying
germany
group
gruidae
grus
landing
migrating
motion
nature
slow
the
wings
英文關鍵字
air
and
animal
animals
autumn
bird
common
crane
diepholz
eurasian
fall
field
flight
flying
germany
group
gruidae
grus
landing
migrating
motion
nature
slow
the
wings