英文關鍵字
animal
beautiful
beauty
bird
calm
care
central
cleaning
couple
ecology
elegance
endangered
environment
feather
feathers
grace
graceful
lake
love
mirror
nature
ornithology
park
peaceful
pond
purity
recreation
reflection
relaxing
reserve
river
romance
romantic
sanctuary
sequence
species
swan
symbol
together
tranquil
two
valentine
water
wedding
white
wild
wildlife
wings
zoo
zoology