相关单词近义词 defense 防卫, safeguard 保卫者, protection 保护, jetty 码头, dike 堤坝, entrenchment 掘壕沟, security 安全, rampart 垒, wall 墙壁, fortification 防御工事（尤指堡垒、要塞..., embankment 堤防, earthwork 土方工程, barricade 【C】路障, defence 防御, buttress 扶墙, buffer 缓冲, barrier 栅栏, breakwater 防波堤, seawall 海塘, groin 腹股沟, mole 痣, groyne 防波堤临近词bum, bully, bulwark stay, bulwark rail, bulwark netting, bulwark plating, bulwark molding, bulwark stanchion, bulwark mooring pipe, bulwark against communism 返回 bulwarks