英文關鍵字
active
background
bag
beach
busy
clean
collect
contamination
day
dirty
discarded
disposal
dump
earth
eco
ecology
environment
garbage
global
green
help
horizontal
human
initiative
junk
litter
nature
object
ocean
outdoor
people
picking
planet
plastic
pollution
protection
recycling
responsibility
rubbish
safety
sea
seashore
spring
trash
volunteer
waste
water
woman
work