英文關鍵字
aerial
atmosphere
bags
bionomics
breach
burial
bush
cellophane
contamination
contravention
defilement
desecration
disturbance
dregs
dump
ecology
environment
garbage
glass
global
impurity
infringement
litter
melee
milieu
offal
offense
plastic
pollute
pollution
polyethylene
polythene
refuse
rubbish
scramble
scrimmage
scum
selfwilled
sweepings
trash
unauthorized
urban
violation
violations
warming
waste
weed