同时音乐爱好者可以添加艺术家和其他人为好友。
Meanwhile, music fans can friend the artists and each other as they engage in music discovery on the network.
这就提供了很好的用户体验，因为可以即时添加艺术家，但是这里假定很少出现调用失败。
This provides a good user experience as adding artists will be instantaneous, but it assumes that failures will be very rare.
有时候艺术品真迹看起来是赝品，是因为很多修护人员添加了很多层保护膜，以覆盖油画上的损伤；而随着时间的推移，画作上损坏的地方已经恶化了。
Sometimes original art works appear questionable or inauthentic because they've had so many restorers add touch-up layers to cover up damage, damage from the paint having deteriorated over time.
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