急求一篇英语演讲稿 关于环保2——3分钟 有些长词有实际意义看到好的奖分
问题描述：
急求一篇英语演讲稿 关于环保
2——3分钟 有些长词
有实际意义
看到好的奖分
答
Once man did not have to think about the protection of his environment.There were few people on the earth,and natural resources seemed to be unlimited.Today things are different.The world has become t...