英文關鍵字
background
bottom
boulders
cascade
cataract
clean
clear
climate
creek
creeper
dry
ecosystem
environment
epiphytes
evergreen
exotic
fall
first
floodplain
flowing
flows
fluid
forest
landscape
laurel
liana
moist
mountain
natural
nature
niagara
northern
park
plants
river
riverside
season
stream
sub
thailand
thickets
travel
tropical
tropics
type
undergrowth
water
wildn
winter
zone