最近,我去了一趟上海,因是交警,所以特别留意了上海的交通。上海的交通协管员给我留下了深刻的印象,仔细观察他们的工作后我敬佩不已:他们绝不是摆设,也不是可有可无,且很少有人在敷衍 Recently, I went to Shanghai for a traffic policeman, so I paid special attention to traffic in Shanghai. I was impressed with the traffic coordinators in Shanghai and I admired them after scrutinizing their work: they were by no means dispensable and seldom perfunctory