短語詞組短語pedestrian n traffic 行人交通;行人往來pedestrian road traffic accidents 行人事故pedestrian crossing traffic 行人過街交通pedestrian s traffic 行人交通pedestrian operated traffic signal 行人過馬路手操作交通信號pedestrian disobey traffic regulations 行人違章pedestrian and vehicular traffic 人車分流pedestrian traffic control 行人交通控制blocking pedestrian traffic 阻塞行人交通 返回 pedestrian traffic