英文關鍵字
autumn
branches
caucasian
cellophane
clean
colorful
day
disposable
earth
ecological
ecosystem
environment
face
forest
garbage
health
leaf
leaves
nature
orange
oudoors
outdoors
outside
packaging
park
plastic
pollution
polyethylene
polythene
problem
protect
protection
recycling
red
responsibility
sunlight
sunny
transparent
tree
waste
wind
woman
wrapped
yellow
young