1
the substructure of [noun phrase]
用于指具体或抽象事物的基础部分。
Engineers examined the substructure of the bridge.
工程师检查了桥梁的下部结构。
基础；下部结构；根基
先理解核心含义，再看它在真实句子里的用法。
基础；下部结构；根基
The supporting part of a structure that forms its foundation, whether physical or organizational.
Engineers examined the substructure of the bridge.
工程师检查了桥梁的下部结构。
基础；下部结构；根基。
The supporting part of a structure (either physical or organizational; the foundation).
铁路轨道铺设的土石基底。
The earth or gravel that the railway tracks are embedded in.
The building's substructure is made of reinforced concrete to support the upper floors.
这座建筑的下部结构由钢筋混凝土制成，用来支撑上面的楼层。
A strong substructure is essential for any bridge that carries heavy traffic.
对于任何承载重型交通的桥梁来说，坚固的下部结构都是必不可少的。
Engineers inspected the substructure of the old house before approving the renovation.
工程师在批准翻修之前检查了那栋旧房子的下部结构。
用于指具体或抽象事物的基础部分。
Engineers examined the substructure of the bridge.
工程师检查了桥梁的下部结构。
强调某物具有支撑性基础。
Every society has a substructure of economic relations.
每个社会都有经济关系的基础结构。
Not this
The engineers will substructure the bridge.
Use this
The engineers will build the substructure of the bridge.
“substructure”是名词，不能用作动词。正确的表达是使用“build”或“construct”等动词，后接“the substructure of”。
Not this
The government invested in substructure projects.
Use this
The government invested in infrastructure projects.
“substructure”指建筑物或道路的下部支撑结构，而“infrastructure”指社会的基础设施（如交通、通信等）。此处应使用“infrastructure”。
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Dictionary facts from ECDICT, WIKTIONARY.