英文關鍵字
trash
garbage
bag
child
throw
rubbish
schoolboy
general
biodegradable
eco
plastic
recycling
waste
environment
boy
kid
starch
pollution
ecology
recycle
throwing
clean
disposal
environmental
bin
biomaterials
container
litter
junk
nature
ecological
park
street
white
refuse
urban
outdoors
outdoor
collection
consumerism
behavior
recycled
city
dispose
recyclable
children
disposable