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《Writing》精品PPT课件优质课下载
Haze
Haze
Brainstorming
Noise pollution
White pollution
Air pollution
Water pollution
desertification
Light pollution
Desertification
Air pollution
Water pollution
White pollution
Help me!
Discussion
How to help our earth?
1
plant more trees
We should to
make our air fresh
Make our air fresh
plant more trees
2
Ride a bike and take a bus (public transportation)
more often