英文關鍵字
cow
feeding
interaction
woman
girl
lucerne
switzerland
slow
motion
agriculture
cattle
herd
bull
rigi
mount
lake
zug
swiss
flag
alpine
meadow
rigischeidegg
schwyz
farm
mountain
central
alps
canton
of
railway
people
happy
landscape
trail
rural
trekking
grass
countryside
animal
tourist
panorama
tourism
europe
country
nature
outdoor
summer
european
graze