英文關鍵字
amount
background
canal
chemical
clean
closeup
closeupn
contamination
cuisine
danger
dirty
disaster
drain
drainage
dump
eating
ecology
effluent
environment
environmental
factory
flap
flow
flowing
fork
garbage
gate
global
hugh
industrial
industry
influence
italian
liquid
metal
metallic
natural
nature
oil
old
pasta
pipe
plant
polluted
pollution
production
recycling
removal
restaurant
river
rivern
rusty
sewage
sewer
spaghetti
stream
system
technology
toxic
tube
vegetables
warming
waste
water
white
woman