英文關鍵字
abstract
alone
animal
aqua
background
belly
bright
bubble
clean
clear
cold
color
concept
dead
dirty
drip
drop
ecology
environment
fish
fishing
floating
food
global
lake
life
light
liquid
motion
natural
nature
ocean
pollution
rain
reflection
ripple
river
sky
space
splash
surface
swimming
wash
water
wet
wildlife
world