英文關鍵字
air
botlek
chemical
chemicals
chimney
clouds
dutch
energy
environment
europoort
flame
flames
harbor
heavy
holland
industry
netherlands
overcast
pipe
poison
poisoned
pollute
pollution
rotterdam
smoke
smokestack
sun
the
wind
windy
英文關鍵字
air
botlek
chemical
chemicals
chimney
clouds
dutch
energy
environment
europoort
flame
flames
harbor
heavy
holland
industry
netherlands
overcast
pipe
poison
poisoned
pollute
pollution
rotterdam
smoke
smokestack
sun
the
wind
windy