同根派生 英汉例句用作名词 (n.)When high beam headlights are in use sensors in the Automatic High Beam system detects oncoming traffic and automatically switch the headlights to low-beam.当远光灯大灯都在使用中的传感器自动检测系统的高光束迎面而来的流量和自动切换到低大灯光束。