英文關鍵字
black
chemical
contaminated
contamination
corrosion
crude
damage
danger
dangerous
dead
death
dirty
disaster
disposal
dragonflies
dragonfly
dump
ecological
ecology
environment
environmental
fluid
fuel
hydrocarbons
industrial
industry
lagoon
liquid
oil
petroleum
poison
polluted
pollution
sewage
sludge
soil
sources
spill
spills
survive
survived
toxic
waste