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亲爱的同学们： Dear students 你们好！ How do you do! 我是一个跟你们差不多大年纪的学生，今年刚上六年级。我们同在一个地球上，同在一片蓝天下，珍惜地球资源是我们的责任。 I'm a student about your age, just in sixth grade this year. We are on the same earth and under the same blue sky. It is our responsibility to cherish the earth's resources. 我们都知道，地球是我们赖以生存的地方。宇宙中，以地球为中心的四十万亿千米的范围里，没有适合人类居住的另一个星球。所以，我们不能指望破坏了地球以后，再移居到别的星球。 We all know that the earth is where we live. In the universe, there is no other planet suitable for human habitation within the 40 trillion kilometers around the earth. So we can't expect to destroy the earth and move to another planet. 现在，有的人为了自身的利益就去破坏地球，比如：毫无节制的用水、肆虐地砍伐树木、过分地开发耕地、无止境地排放污水……可是，地球的资源是有限的，是经过几百万年，甚至几亿年的地质变化才形成的。 Now, some people destroy the earth for their own interests, such as: uncontrolled water use, rampant cutting of trees, excessive development of arable land, endless discharge of sewage However, the earth's resources are limited. It took millions or even hundreds of millions of years of geological changes to form. | 
