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第一段：文章的开头
开篇句句：________finally succeeded in _____ after many's efforts.
扩展句：_____ will influence _____ greatly.
第二段：表达正面观点
主题句：____ brings ____ many benefits and opportunities.
扩展句：1、As _____ , ______ can ______.
2、What's more, __________.
第三段：表达反面观点
主题句：Every thing has two aspects.
扩展句：1、___ can also bring us some challenges. For example, ______.
2、In addition, it will be more difficult for _____ to _____, as ____.
第四段：结尾，表明自己看法
结尾句：However, ____ does more good than harm to ____.
扩展句：What we should do is to ______.
