英文關鍵字
above
abstract
aqua
aquatic
conservation
damage
danger
dangerous
dirt
dirty
elevated
environment
environmental
fresh
garbage
grey
hazard
holiday
issues
lake
liquid
marine
motion
murky
natural
nature
outdoor
outdoors
pollution
reflecting
reflection
relaxation
rubbish
scene
sea
shine
shining
sun
sunlight
surf
surface
swamp
tourism
tranquil
travel
vacations
waste
water
wave
waves