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每个城市,都是一架精密的机器,而在这架庞大的机器的每一个节点上,都有一个不可或缺的关节,就是一个城市交通枢纽上的交通警察,是他们,从容淡定,指挥着城市交通,使来往的车流人流畅通无阻,让这架机器的运转更加轻松。他们就像润滑剂,从早到晚,疏导车辆行驶,解决各种摩擦,处理交
Every city is a sophisticated machine, and at every node of this huge machine there is an indispensable joint, a traffic policeman on an urban transport hub, a calm, Directing urban traffic, so that the flow of traffic from people to unimpeded, so that the operation of this machine more easily. They are like lubricants, from morning to night, driving the vehicle to solve a variety of friction, deal with