N-COUNT (用来自动拍摄超速车辆的)超速摄像头，电子警察，电子眼 A speed camera is a camera positioned at the side of a road which automatically photographs vehicles that are going faster than is allowed. The photographs can be used as evidence in a court of law. (用来自动拍摄超速车辆的)超速摄像头，电子警察，电子眼