When can you use full beam headlights?

什么情况下可以使用远光灯？

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Dip for oncoming or following traffic, officers directing traffic and when parked with headlights on. High beam can worsen visibility in fog.

有来车、跟车、接近指挥人员或开着头灯停车时应切近光；雾中远光反射会使能见度更差。