这种由上而下的指令、严格的执法以及专家的建议，结合起来收到了成效。
The combination of top-down mandates, aggressive enforcement and expert advice yielded results.
为了能够当选，候选人必定会做出很多承诺，比如他们如何看待民众的需要，哪些方面能够很好的说明自己比其他人采取了更严格的执法行动。
And to get elected candidates will naturally promise what they think people want, which could well mean tougher enforcement of some laws than others.
在发布这些新数字的声明中，美国交通部长Ray Lahood将驾驶分神称为一种“传染病”，并且呼吁更加严厉的地方管制措施和更加严格的执法。
In an announcement of the new figures, US Transportation Secretary Ray Lahood called distracted driving an "epidemic" and called for tougher local regulations and stricter law enforcement.
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