柯林斯词典grade crossing (grade crossings) 1. N-COUNT A grade crossing is a place where a railway track crosses a road at the same level. (铁路与公路相交的) 平交道口[美国英语] 返回 grade crossing剑桥词典a place where a railway and a road cross each other, usually with gates that stop the traffic while a train goes past （铁路与公路的）平面交叉路口 返回 grade crossing