英文關鍵字
blue
mountains
park
scenery
travel
beautiful
background
sky
hill
green
forest
cloud
aerial
view
peak
clouds
summer
tourism
rock
mountain
nature
valley
spring
scenic
landscape
springtime
freshness
wilderness
majestic
tranquil
serene
beauty
natural
peaks
summit
meadow
greenery
blooming
stream
outdoor
adventure
hiking
trekking
exploration