The moving picture says that the traffic regulations (20th) are blind spots of large trucks, invisible hidden dangers The moving picture says that the traffic regulations (20th) are blind spots of large trucks, invisible hidden dangers The moving picture says that the traffic regulations (20th) are blind spots of large trucks, invisible hidden dangers The moving picture says that the traffic regulations (20th) are blind spots of large trucks, invisible hidden dangers Drafting: Zhang Sipei Editor: Mao Ming Editor: Fang Weilin Review: Feng Jing Final review: Zhao Ming