英文關鍵字
background
banks
branches
ecosystem
edge
flow
forest
grows
island
leaves
maintained
nature
preserve
river
rivers
shady
sumatera
sumatra
tree
tropical
upstream
英文關鍵字
background
banks
branches
ecosystem
edge
flow
forest
grows
island
leaves
maintained
nature
preserve
river
rivers
shady
sumatera
sumatra
tree
tropical
upstream