英文關鍵字
adult
animal
baby
beautiful
beauty
bird
birds
blue
care
cygnet
ecology
elegant
environment
family
fauna
female
food
graceful
green
ground
lake
mist
mom
mother
mum
mute
nature
outdoors
park
peaceful
pets
pond
pool
pure
purity
reserve
river
sand
sky
spring
sunny
swan
travel
vacation
water
white
wild
wildlife
young