例如，我们用来构建to - do列表应用程序的控件都没有内建在语言之中。

For instance, the controls we used to build the to-do list application were not built into the language.

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对头部的行，我们用内建的控件(设置其CornerRadius为10，以得到圆角效果)并在其中添加一些文本来创建标题。

For the header row we'll use the built-in control (with a CornerRadius of 10 to get a nice rounded edge) and add some text inside it to create the Title.

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MultiView控件没有提供内建的用户接口。

The MultiView control doesn't provide a built-in user interface.

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