Unlike more established industries, where the lines of competition are clearly defined, they are burred and indistinct in the Internet industry, as companies that compete one day may be partners the next.
语法 Sentence Correction-2109
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Yeezy 2014-07-28 10:59:30
they在优先指代more established companies，而不是在指代lines of competition，此处where引导的定语从句在两个逗号之间，视为插入，可以忽略。
阿阿阿阿阿阿水 2014-11-19 22:12:37
they在优先指代more established companies，而不是在指代lines of competition
小欣欣 2014-10-08 15:29:27
where是一个插入语，可以忽略 they在这里只带的是more established industry而不是句意想表达的lines of competition
