相关单词近义词 barrier 栅栏, fortification 防御工事（尤指堡垒、要塞..., obstruction 障碍, blockade 【C】封锁, bar 酒吧, block 街区, cordon 警戒线, secure 安全的, obstruct 阻隔, fortify 加强, lock up 上锁, defense 防卫, dike 堤坝, wall 墙壁, enclosure 附件, barricado 路障, stop 停止, block off 封锁, block up 堵塞, roadblock 路障临近词barrier, barren, barricade shield, barricade lantern, barricade situation, Barricade environment, Barricades were erected to keep 返回 barricader