英文關鍵字
adult
and
autumn
away
bag
benches
beverage
blue
bottle
bottles
clean
collect
conservation
container
crushed
day
discarded
drink
ecological
ecology
empty
environment
environmental
finish
forest
garbage
global
junk
liquid
man
material
nature
near
park
path
phone
pick
plastic
pollution
product
recycle
recycled
recycling
rubbish
smart
stacking
talking
the
transparent
trash
used
utilization
walking
warming
waste
water
with
wood
worker