英文關鍵字
bin
biodegradable
biogas
biohazard
building
change
climate
conservation
construction
demolition
disposal
dump
ecology
environment
environmental
excavator
garbage
gas
global
greenhouse
heap
junk
landfill
litter
management
material
packaging
pet
pile
plastic
pollution
polyethylene
raw
recyclable
recycle
recycled
recycling
reduce
refuse
resource
reusable
reuse
reusing
rubbish
scrap
secondary
trash
truck
unclean
unloads
warming
waste