这是个竞争十分激烈的市场，全球的大公司都在耗费巨资研发新的音乐播放器与线上音乐商店。
It is a very competitive market, with major global companies making large investments to develop new music players and online music stores.
在这样的世界里，任何播放器都可以播任何线上商店买来的音乐，所有商店卖的音乐也都能在任何播放器上播。
In such a world, any player can play music purchased from any store, and any store can sell music which is playable on all players.
在这样的世界里，任何播放器都可以播任何线上商店买来的音乐，所有商店卖的音乐也都能在任何播放器上播。
In such a world, any player can play music purchased from any store, and any store can sell music which is playable on all players.
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