Another app might connect the user's location to social networks.
另外一款应用可能将用户的位置与社交网络相联系。
With only four lines of code, developers can add a Facebook Connect button to their app in order to make it more social.
只需四行代码，开发者就可以将Facebook Connect的按钮添加到他们的应用程序中去，从而让这些应用程序变得更具社交特色。
In other words, apps will be able to offer users to find their Twitter friends who are also using a new app they've installed, and connect with them there too.
换而言之，应用将可以让用户找到他们也在安装使用这个应用的Twitter好友，并且和他们联系。
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