英文關鍵字
abandoned
automobile
bare
car
conservation
countries
damaged
danger
developing
disaster
disposal
dispose
dump
eco
ecology
environment
environmental
forest
garbage
ground
gum
heap
huge
illegal
industrial
industry
old
outdoor
park
part
pollution
problem
problems
recycle
recycling
refuse
rubber
rubbish
tire
tires
toxic
transport
transportation
trash
truck
tyre
used
vehicle
waste
weathered
wheel
wheels
woodland
woods
yard