英文關鍵字
adventure
background
beautiful
birch
blue
bottom
branch
branches
bubbles
coast
coral
ecosystem
environment
exploration
exploring
fish
flores
fresh
freshwater
habitat
image
island
journey
lake
life
mangrove
marine
moving
natural
nature
ocean
old
peaceful
rays
roots
saltwater
scenery
sea
searching
shadow
sunny
swimming
travel
tree
tropical
under
underwater
water
wildlife