英文關鍵字
aerial
atmosphere
bionomics
birds
breach
cellophane
contamination
contravention
defilement
desecration
disturbance
dregs
dump
ecology
environment
garbage
global
hill
impurity
infringement
litter
melee
offal
offense
plastic
pollute
pollution
refuse
rubbish
scavengers
scramble
scrimmage
scum
selfwilled
sweepings
trash
unauthorized
urban
violation
violations
warming
waste