英文關鍵字
black
bubbles
bubbly
cartoon
circle
contaminated
danger
dangerous
dark
fast
flowing
foam
foaming
foamy
froth
frothing
green
gross
nasty
nuclear
polluted
pollution
pond
river
scum
scummy
stream
surface
swirl
swirling
swirls
thick
waste
water
英文關鍵字
black
bubbles
bubbly
cartoon
circle
contaminated
danger
dangerous
dark
fast
flowing
foam
foaming
foamy
froth
frothing
green
gross
nasty
nuclear
polluted
pollution
pond
river
scum
scummy
stream
surface
swirl
swirling
swirls
thick
waste
water