急求几篇以“our earth”为题的演讲稿,

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急求几篇以“ourearth”为题的演讲稿,急求几篇以“ourearth”为题的演讲稿,急求几篇以“ourearth”为题的演讲稿,SavingtheEarthItisunbelievablethat

急求几篇以“our earth”为题的演讲稿,
急求几篇以“our earth”为题的演讲稿,

急求几篇以“our earth”为题的演讲稿,
Saving the Earth
It is unbelievable that our earth become more danger with the development of technology.We invented the plastic,but the plastic bag polluted our ground.We invented the car,but our air became worse.We cut the trees to make beautiful arts,and then the nature punished us with storm and sand storm.In order to save the earth,I think we should be careful when use the new invention.