柯林斯词典substructure /ˈsʌbˌstrʌktʃə/ 1. N a structure, pattern, etc, that forms the basis of anything 基础 返回 substructure剑桥词典a firm structure that supports something built on top of it 下层结构；下部建筑 The explosion damaged the bridge , but the substructure remained intact . 爆炸摧毁了大桥，但桥墩仍完好无损。 返回 substructure