Digital zoom with the mouse scroll wheel, and drag to scroll the recording window.

通过鼠标的滑动可以进行数码变焦，也可以拖拉滚动条来控制录制的窗口。

youdao

Mice with a scroll wheel as a middle mouse button are fairly popular, so support is being added.

用一个滚动轮作为鼠标中键的鼠标非常流行，所以增加了对它的支持。

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The company also has a 25th Anniversary site up that's basically just a venue for hawking their hardware products—I looked in vain for a picture of my beloved scroll wheel mouse, but had no luck.

微软也做了一个25周年庆的网站,基本上就是他们硬件产品的总览.我费了很大力气去寻找我那心爱的滚轮鼠标,但是很不幸没找到.

youdao

But you can also remap other key functions such as Ctrl, Shift, Alt, various click and scroll mouse functions, and also launch other game profiles and third party programs.

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While the Mobile Mouse has just the Start key and a scroll wheel, though, the bigger Comfort Mouse takes things a step further: the button there doubles as a capacitive surface you can swipe to toggle through open programs in Windows 8.

ENGADGET

If you really want to cut through huge blocks of text, you're still better off using the scroll wheel on your mouse.

ENGADGET: Hands-on with Tobii REX, a peripheral that brings eye-tracking to any Windows 8 PC (video)