英文關鍵字
basket
bin
blue
bottle
box
can
clean
collection
conservation
container
disposal
dump
eco
ecological
ecology
environment
environmental
floor
food
garbage
glass
green
grey
horizontal
indoor
interior
metal
office
organic
paper
plastic
pollution
public
recycle
recycling
red
refuse
reuse
rubbish
safe
save
segregation
separation
set
sign
sorting
symbol
trash
urban
waste