此外，亚马逊也有一个和iTunes一样大小的音乐库，但你需要手动上传所有音乐，而不是让服务器和你现有的歌曲进行自动匹配。
On top of that, despite Amazon having a music library the same size as iTunes, you still have to upload all your own tracks rather then the servers matching their content with what you already own.
现在，通过流式服务，用户即可从计算机服务器访问大型音乐库，本人无需再拥有这些歌曲本身。
Streaming services now allow users to access large music libraries from a computer server instead of owning the songs themselves.
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