英文關鍵字
area
beautiful
botany
branch
day
dense
environment
fern
flow
foliage
forest
forming
green
ground
headwater
jungle
leaf
liquid
litter
moss
nature
organic
outdoors
people
plant
rain
rainforest
real
rock
root
season
small
source
spring
stone
stream
the
time
tree
tropical
water
wet
wild
wood