Mostsubwayaccidentsresultfromslips,trips,andfallsonstai...
问题详情：Mostsubwayaccidentsresultfromslips,trips,andfallsonstairwayswhensomeoneisinarush.Thebestsafetyadvicewecangiveyouis:slowdownwhenyouareonthestairs,andholdthehandrail(扶手).Sometrainsareshorter(t...