References are typically used to represent real-world objects, so they are a natural fit for application users, modules, and pages.

引用（reference）通常用来代表实际对象，所以它们非常适合于应用程序用户、模块和页面。

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Earlier this month, Hollaback! released an application for the Apple iPhone that lets users report harassment as soon as it happens.

VOA: special.2010.11.29

This feature will enhance the draw of the Chatter application for enterprise users.

FORBES: Chatter No Dim Idea For Salesforce.com

Canon has created two exciting solutions to unlock your images, "My Image Garden"3 software and the "Print Your Days" Facebook4 application, for users to get the most out of their images and empower the sharing experience.

ENGADGET: Canon expands its PIXMA line with MG2220, MG3220 and MG4220 all-in-ones

Users who download the application can call other Skype users for free and connect to international numbers at low rates.

FORBES: Skype Conducting "In Depth Training" For Verizon Employees