浜辺
environmental
activist
bag
bin
bottle
clean
coast
concept
conservation
container
disposable tableware
disposal
dump
eco
ecological
ecology
environment
free
garbage
green
industrial
junk
litter
nature
outdoor
park
people
pick up
picker
pile
plastic
polluted
pollution
problem
recycle
recycling
refuse
reuse
river
rubbish
sand
social work
trash
volunteer
waste
water
white
woman
zero