Other alternative input devices include single switch devices, devices that track head movements, and alternative keyboards for persons with mobility impairments.

其它可选择的设备包括单一切换设备、跟踪头部移动的设备，和用于行动困难的人可选择的键盘。

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Given everything that happened, rain at the start, the safety car, the switch to slick tyres when the track was still very slippery - we did a great job.

发生了那么多的事情，开始阶段的雨，安全车，在赛道还很湿滑时换上软胎——但我们还是干的非常好。

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Bejerano and colleagues took the switch information from a chimpanzee's genome and essentially "hooked it up" to a reporter gene, a gene whose effects scientists can track as an organism develops.

Bejerano和同事们从黑猩猩的基因组提取开关信息，把它们附加到一组可以报告的基因上，当生物发育时，科学家们可以跟踪这组基因的影响。

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But the connection from Hoboken down to the World Trade Center tunnels is still severed, as the railroad awaits delivery of a replacement track switch.

WSJ: PATH's Road Back Is Rocky

Katerina Vasilievna took a broom and began to sweep the track around the switch.

NEWYORKER: Among Animals and Plants

If I'm feeling impish, I can switch them all around by swirling the track wheel and mashing a few backlit buttons while I'm walking from the living room to the bedroom.

FORBES: Magazine Article