该程序的beta版本允许使用方向键通过选择操作系统启动。

The beta version of this programs allows you to boot by selecting the OS with your arrowkeys.

youdao

Mobile Safari将定义onorientationchange事件处理程序和window . orientation属性以处理方向事件。

Mobile Safari defines an onorientationchange event handler and a window.orientation property to handle the orientation events.

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这个应用程序检测到了方向旋转，就相应地提供给你单页或是两页的内容。

The app detects orientation rotation, and provides you with either a single page or two-page layout accordingly.

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And I could take that information, type it up into a program, make some assumptions about speed and direction and what routes they're going to take and actually watch the ambulance go to St. John's Mercy.

我得到这条信息之后，将它输入程序里，假设它们的速度和方向,以及它们应走哪条线路,就能看到救护车进入圣约翰医院。

斯坦福公开课 - Twitter之父Jack.Dorsey演讲：好奇和灵感的力量课程节选