浜辺
environmental
background
bag
blue
bottle
care
clean
cleaning
coast
coastline
dirty
dump
earth
eco
ecological
ecology
environment
garbage
global
green
grunge
litter
marine
nature
ocean
pile
planet
plastic
pollute
polluted
pollution
problem
protection
recycle
recycling
rubbish
sand
sea
shore
summer
toxic
trash
unhygienic
volunteer
waste
water
zero