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      <title>请教：ruby 如何截取 140 个字，中英文逗号啥的都有</title>
      <description>&lt;p&gt;发到新浪微博用的  &lt;/p&gt;</description>
      <author>benyhu</author>
      <pubDate>Thu, 31 May 2012 16:10:33 +0800</pubDate>
      <link>https://ruby-china.org/topics/3579</link>
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    <item>
      <title>大家如何做关键词过滤的?</title>
      <description>&lt;p&gt;有一堆关键词，要求在文章发布之前对文章内容进行检测，如果包含某些关键词就需要审核。
该用什么样的匹配算法呢？  &lt;/p&gt;</description>
      <author>benyhu</author>
      <pubDate>Mon, 28 May 2012 14:38:08 +0800</pubDate>
      <link>https://ruby-china.org/topics/3524</link>
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