1836 john meadam, scottish engineer who introduced the ? macadamising ? system of road-making died 发明碎石铺路法的苏格兰工程师约翰?麦克亚当去世。
They crossed the park and went west along washington boulevard, beautiful with its broad macadamised road, and large frame houses set back from the sidewalks 他们穿过公园,沿着华盛顿大街往西走。那是一条漂亮的碎石子铺的路,两旁宽敞的木头房屋和人行道隔了一些距离。