柯林斯詞典grade crossing (grade crossings) 1. N-COUNT A grade crossing is a place where a railway track crosses a road at the same level. (鐵路與公路相交的) 平交道口[美國(guó)英語(yǔ)] 返回 grade crossing劍橋詞典a place where a railway and a road cross each other, usually with gates that stop the traffic while a train goes past （鐵路與公路的）平面交叉路口 返回 grade crossing