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關於MP4的準確概念,一言難盡,因為無論是從MP4的品牌、市場、產品規格、配寘標準等各方面來說,都可以用一個字來形容——“亂”.不知是炒作還是趨勢,在現在商家眼裡,只要能視頻沾一邊的播放機,統統都叫MP4,這種說法簡…
字母組合,或某品牌= =
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