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2013-05-23 12:21
求翻译：In the latest statistics available, the Audio Publishers Association estimated the total size of the audiobook industry at $900 million in 2009. Digital downloads accounted for 29 percent of that revenue, but represented 49 percent of all units sold. Audible, which only sells digital audiobooks, has not released sales 是什么意思？ 待解决
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In the latest statistics available, the Audio Publishers Association estimated the total size of the audiobook industry at $900 million in 2009. Digital downloads accounted for 29 percent of that revenue, but represented 49 percent of all units sold. Audible, which only sells digital audiobooks, has not released sales
问题补充： |
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