1、We have only one earth.It's clear how important it is to take care of our earth.However,nowadays the environment is being polluted badly,so we must take actions.For example,we should pick up the rubbish and throw it into dusbin.We should collect waste batteries.And we should use plastic bags as less as possible.In addition,we mustn't spit in public places.Protecting the environment is our duty.As a student,I will try my best and advise others to protect the environment together.I believe the earth will become more and more beautiful if everyone can make their effort.

2、翻译：我们只有一个地球。显而易见保护好地球有多重要。但是，如今环境正被严重破坏，所以我们必须行动起来。比如，我们应该捡起垃圾，把它扔进垃圾桶。我们应该收集旧电池。