The Tab bar Application template provides a special controller that displays a bottom navigation bar.

Tab Bar Application模板提供了一个特殊控制器，它会在底部显示一个导航条。

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Bottom navigation bars make it easy to explore and switch between top-level views in a single tap.

底部导航栏让浏览及切换顶层视图这件事变得轻松。

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The bottom navigation bar of the frame contains some links that are not fixed; they depend on the current view.

框架的底部导航栏包含一些不固定的链接，它们依赖于当前视图。

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The detailed terms and conditions of Ooma's products, services, and support are fully set forth in the Terms and Conditions, available online under the "legal" tab on the bottom navigation bar of the Ooma Web site.

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The default browser includes an interesting toolbar at the bottom with the usual navigation keys like Back and Forward along with a Zoom key.

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Effect any of the hard Android navigation keys on the bottom and you'll notice a bit of lag before the OS kicks into action.

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