A special vibrating vest worn by the driver provides information about the vehicle's speed.

VOA: special.2009.11.03

Raul, there was recently a study done about cell phone use by a driver when people are driving a car, and there was a debate whether that should be banned.

劳尔，最近有一项,关于司机开车时使用手机的研究，关于是否应该禁止此行为，有一场争论。

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