英文關鍵字
aqua
black
blue
branch
bubble
cascade
cliff
colorful
condensation
coniferous
current
environmental
fallen
fir
flow
flowing
foam
foamed
foamy
forest
fresh
froth
hiking
leaf
lichen
moss
moving
natural
nature
orange
pine
rainy
reflection
river
season
soft
sparkle
splash
spray
spume
stem
stone
stream
summer
tourism
travel
tree
water
watercourse
wave
wavy
wood
yellow