在我们过分激动之前，还有一个对于每一个在线音乐服务商都不解得问题。
Before we get too excited, there's an issue that still befuddles every online music service.
包括在线音乐服务平台潘多拉、Last . fm和Grooveshark等。
Includes online music delivery platforms like Pandora, Last.fm, and Grooveshark.
监管者疲于分辨阻止合法在线音乐服务这样简便、低廉的替代品与盗版下载之间的影响。
Monitors struggle to distinguish the effect of deterrence from the rise of easy, cheap alternatives to piratical downloading, such as legal online music services.
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