英文關鍵字
black
boulders
clean
climate
contrast
countryside
environment
fall
fine
flow
flowing
fresh
grey
landscape
large
liquid
mountain
nature
nobody
ocean
outdoor
outdoors
outside
over
peaceful
pool
river
riverbank
riverside
rock
rocks
rocky
scene
stone
stream
terrain
tropical
tropics
valley
vietnam
water
waterfall
weather
white
wild
with