警察叔叔知道自己墨镜一戴，路中一站，大家思绪就容易凌乱，想看警察叔叔露着给你们指挥交通吗？The policeman knows that once he puts on sunglasses and stands in the middle of the road, everyone’s thoughts will be easily hot. Do you want to see the policeman directing traffic for you with his sunglasses exposed?