英文關鍵字
air
animal
aspiration
background
beautiful
beauty
bird
cloud
dream
ecology
ecosystem
environment
feather
flight
fly
flying
free
freedom
gull
heaven
high
instinct
lifespan
lightness
migration
motion
nature
navigation
ocean
ornithology
outdoor
peace
population
science
sea
seabird
seagull
sky
slow
slowmo
soar
soaring
space
species
summer
travel
wild
wildlife
wind
wing