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一邊看著電視上的選秀節目，一邊用手機發微博評論。這樣的場景大家應該都不陌生吧？隨著便攜電子設備的普及，每個家里除了電視機那個大屏幕之外，同時還亮起不少小屏幕，我們將其統稱為“第二屏幕”。
Second screen, some times also referred to as "'companion device'", is a term that refers to an additional electronic device (e.g. tablet, smartphone) that allows a television audience to interact with the content they are consuming, such as TV shows, movies, music, or video games, extra data is displayed on a portable device synchronized with the content being viewed on television.
第二屏幕，有時也被稱為“伴侶設備”，指看電視時能同時與電視節目內容互動交流的電子設備，如平板電腦或智能手機等。電視上進行的節目、電影、音樂或者視頻游戲等在便攜設備上也會有同步的相關內容顯示。
