英文關鍵字
atmosphere
awareness
biohazard
carbone
co2
concept
contamination
dioxide
dirty
disposable
disposal
dump
dumping
earth
eco
ecology
environment
environmental
flora
garbage
global
green
hand
harmful
hazard
human
impact
industry
irresponsible
junk
landfill
littering
nature
overconsumption
planet
plastic
pollution
poster
problem
recycle
recycling
remember
responsibility
rubbish
save
scrap
social
trash
volunteer
waste