英文關鍵字
trashfree
planet
concept
nature
cleaning
woman
collects
plastic
garbage
altruism
bag
blue
bottle
care
clean
cleanup
collecting
collection
cup
dirty
earth
eco
ecological
ecology
ecosystem
environmental
forest
free
friendly
girl
glove
green
hand
human
natural
outdoor
packet
park
pollution
preservation
problem
take
takes
trash
volunteer
volunteering
work