Substructure
n. 下部结构, 路基, 基础\\n[化] 子结构; 底部结构
✅ 同义词
📖 牛津释义
substructure
n
underlying or supporting structure; base or foundation 下部结构; 支撑结构; 基础; 根基. Cf 参看 superstructure 1.
🗣️ 情景例句
Seven letters ... two words ...
七个字母……两个字……
Too much spoils, too little is nothing.
过多反坏事，太少不济时。
and the existence of underwater features of considerable magnitude.
水下特征差异极大。