页面信息

标题（Title） 一般不超过80个字符
Discovery Channel
关键词（KeyWords）一般不超过100个字符
discovery　探索频道　
描述（Description）一般不超过200个字符
Discovery Channel online lets you explore science, history, space, tech, sharks, & more, with videos & news, plus exclusives on your favorite TV shows.

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