英文關鍵字
bio
cartoon
clean
collect
collection
colorful
container
disposal
eco
ecology
environment
environmental
garbage
green
hand
keep
lifestyle
litter
man
material
organic
outdoor
paper
person
pollution
protect
recyclable
recycle
recycling
reduce
refuse
reuse
rubbish
saving
segregate
segregation
separate
separation
sorting
throw
throwing
trash
urban
wall
waste
young