西安古城南郊有一所大学,一条较繁华的马路从学校中间穿过,那时,这所学校还没有过街天桥,所有的专家、学生、市民提着一颗心行走于奔驰的车流中。曾有一个可爱的孩子卷于轮下。有一天,一群附属小学的小学生一直被阻隔在马路边,每一辆车,风驰电掣般地冲过,全然没有看到路边冻得瑟瑟发抖的孩子们。这时,一个声音似乎从天而降: In the southern suburbs of Xi’an, there was a university in the southern suburbs. A more prosperous street passed through the middle of the school. At that time, the school had not crossed the street. All the experts, students and citizens walked in the flow of Mercedes. There was a cute kid rolled under the wheel. One day, a group of primary school children attached to primary schools have been obstructed by the roadside. Every car crossed the road drastically without noticing the children’s frozen shivers. At this moment, a voice seems to fall from the sky: