虽然新闻稿、博客和电子邮件缺少系统化的能被用于制作成索引的参考列表，然而它们也是促使某观点更有影响力的组成部分。
News articles, blog posts and e-mails often lack a systematic reference list that could be used to make a citation index. Yet they, too, are part of what makes an idea influential.
虽然新闻稿、博客和电子邮件缺少系统化的能被用于制作成索引的参考列表，然而它们也是促使某观点更有影响力的组成部分。
News articles, blog posts and emails often lack a systematic reference list that could be used to make a citation index. Yet they, too, are part of what makes an idea influential.
虽然新闻稿、博客和电子邮件缺少系统化的能被用于制作成索引的参考列表，然而它们也是促使某观点更有影响力的组成部分。
News articles, blog posts and emails often lack a systematic reference list that could be used to make a citation index. Yet they, too, are part of what makes an idea influential.
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