For example, let's say we don't want our buttons to have the default rectangle push button look, and instead we want them to have a custom round button look like below.

例如，我们不想要我们的按钮拥有一个默认的长方形的按钮的外观，而是要它们有一个象下面这样的自定义的圆形按钮外观。

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A radio button consists of a round button and application-defined text (a label), an icon, or a bitmap that indicates a choice the user can make by selecting the button.

选项按钮包含一个圆形按钮和应用程序定义的文字(标签)、图示或点阵图，其中会指出使用者可以借由选取按钮所进行的选择。

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The Instant Dictionary is even more exciting: toggling it in the ASUS Quick Setting panel will bring up a small round button that snaps to either the left or right side of the screen.

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After the first round of stops, Button had been slowly eating into Vettel's lead and took his revenge at the second round of pit stops when he made up a second in time in the pit lane and emerged ahead of the Red Bull on track.

BBC: By Sarah Holt

Without any LCD or way to preview the video, the camcorder clock relies on an adjustable base and a clever mirrored button similar to the tiny round mirrors used for taking pictures of yourself on cameras and camera phones.

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