往往，之后扩展到用户的电子邮件，日程表，合同，电子表格，照片以及影像。
Often they extend to the user's E-mail, calendar, contacts, documents, spreadsheets, photos and videos.
用户将可以建立扩展列表，其他用户一键点击就可以获得，有点类似亚马逊的许愿表。
He said that users will be able to create add-on "lists" and offer them as a single click to other users - much like Amazon's wish lists.
每当我必须处理一个用户，我想通过用户对象(即扩展的表行)来做到这一点。
Whenever I have to deal with a user, I'd want to do this through the user object (being an extended table row).
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