numberplate

1. A discreet camera nestles underneath the numberplate to provide an excellent split-screen view of the road ahead, via the on-board monitor, to help when parking or when pulling out of a side road.
   车牌下方具有实用的摄像头，可让驾驶员通过车内监视器更清晰地看到前方路面，帮助其停车或驶离路侧。

noun

1. a plate mounted on the front and back of car and bearing the car's registration number

   Synonym:    license plate