英文關鍵字
bank
basalt
beauty
break
breathtaking
brook
calm
calmness
cliff
concept
conceptual
crashing
danger
dirty
dramatic
drop
edge
erode
erosion
fall
flow
flowing
foliage
granite
gushing
meditation
mindfulness
monsoon
movement
mud
nature
peace
peaceful
peacefulness
pebble
rain
river
rock
rocky
serenity
sewer
soil
stack
stacked
stacking
steep
stone
stream
tower
tranquil
tranquility
travel
water
waterfall
zen