英文關鍵字
animalia
animals
are
aves
bare
bird
birds
black
branch
call
chordata
class
cold
corvidae
corvus
family
flock
flocks
frost
frugilegus
genus
harsh
kingdom
nature
order
outdoor
park
passerine
phylum
raven
rook
rooks
season
sitting
snow
snowfall
tall
tree
trees
winter