Besides href, XHTML 2.0 supplies a collection of additional attributes to further augment the description of a link.

除了href之外，XHTML 2.0还提供了一组附加属性来进一步完善链接的描述。

youdao

So you choose the image you want to augment, link it to another image or video, and upload what Autonomy calls an Aura to its servers.

BBC: Aurasma: Augmented reality future or forgettable fun?