Do you know what will our hometown be after 20 years?Now please go and see with me.20 years later our hometown will be more tidy and beautiful because people try to protect the environment.People will grow more and more trees,flowers and grass so the environment will be improved greatly.But the population twenty years later will increase a lot.
希望楼主采纳我的答案,理由如下：
第一,我的翻译达到了楼主的内容和字数要求；
第二,一楼的翻译有两处语法错误,不够准确.