英文關鍵字
adventure
arch
asia
branch
bush
corridor
countryside
daylight
discovery
empty
environment
explore
foliage
forest
green
habitat
journey
jungle
lanka
loneliness
malaria
mangrove
mosquitoes
natural
nature
nobody
outdoor
river
root
scenic
sri
summer
sunlight
threat
tourism
travel
tree
tropical
tunnel
water
wood
wooden