A wonderful example of that has been the mobilising of taxi driver in Changning to display HIV&AIDS posters in their cabs and acting as constant mobile billboards.

其中一个很好的示例就是昌宁的出租车司机经过动员，开始在其驾驶的出租汽车上展示艾滋病海报并成为一个随时移动的广告牌。

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Removal of the two driver aids was weighing on a number of minds, including Heidfeld's team-mate Robert Kubica.

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Ford was very adamant that its newest options are driver aids.

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