The goal is to keep drivers alert and decrease their frustration while they have to keep to a lower speed limit.

它的目标是保持司机警惕，当他们不得不保持一个较低的速度限制时，降低他们的失落心情。

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On Wednesday RIM promised to discontinue PhantomAlert, a smartphone software program that uses driver-generated databases to alert users of speed traps, speed cameras and DUI checkpoints.

本周三RIM承诺终止PhantomAlert，一个使用司机生成的数据库来警示使用者超速监视区、超速相机及酒后驾车检查点的位置。

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She was alert and precocious and developed at astonishing speed, her mother said, sitting at four months and walking by eight months.

Aleanie母亲说，她机敏早熟，发育速度惊人，四个月能坐，八个月会走。

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The app will monitor the driving habits of teens, pinpoint their location, and alert parents when certain infractions are made or speed limits are exceeded.

FORBES: Wave of Car Safety Mobile Apps Created by Cell Phone Carriers

Thomas and Powers don't want to alert any would-be poachers with the noise of greater speed.

FORBES