英文關鍵字
atmosphere
bin
bottom
box
carton
clean
cleaning
container
cup
damage
debris
disposable
ecovolunteering
ecology
effect
environment
environmental
garbage
impact
industry
influence
litter
manufacturing
market
paper
person
point
pollute
polluted
pollution
problem
production
purity
recycle
recycling
responsible
reusable
rubbish
sign
singleusing
social
sorting
street
throw
translucent
trash
trees
used
view
waste