英文關鍵字
air
and
aquatic
background
bad
bluish
burning
charcoal
closeup
concept
contamination
danger
dirt
dirty
disaster
ecological
ecology
environmental
exhaustive
filmed
firewood
foam
foaming
footage
froth
global
harmful
horizontal
hot
hydro
hydrous
lather
light
macro
moving
nature
organic
panorama
pollutants
polluted
pollution
pond
red
refraction
resource
river
scum
sea
sewage
surface
through
toxic
video
warming
waste
water
watery
wave
waves
waving
white