单元：Module 12.txt

• factory
• pollute
• recycle
• waste
• enemy
• crop
• kill
• oil
• less
• hopeless
• china
• divide
• plastic
• policy
• reuse
• bottle
• throw away
• repeat
• reduce
• cloth
• ton
• tons of
• rubber
• recycling
• rapid
• step
• grandson
• granddaughter