This type of play, especially with building blocks, helps children discover and develop key principles in math and geometry.

这种类型的游戏，尤其是积木游戏，可以帮助孩子们发现和发展数学和几何的关键原理。

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Press Windows key+R to bring up the Run dialog box, then type in "taskmgr" and click OK.

按下 Windows 键+ R ，出现了一个“运行”的对话框。 在对话框中输入 taskmgr ，然后点击确定。

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Listing 5 shows a new key type being declared in the kernel module.

清单5给出在内核模块中声明的一个新的密钥类型。

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Ms. MAYER: Well, mostly, they'll type in key word searches.

NPR: 'iPhone' Tops Google Zeitgeist List

As discussed in a previous Switched On, though, video will be the key content genre if this device type has any legs in the marketplace, and it's difficult to excel in that today without Hulu playback.

ENGADGET: Switched On: A tale of two tablets

The key group variable is the type of solidarity in the sociological sense.

FORBES: The Fundamental 2x2 of Capitalism