| 释义 |
cornerstonecor·ner·stone /ˈkɔrnərˌstoʊn / noun [countable] - a stone at the corner of the base of a building, often put there in a special ceremony（建筑物的）奠基石，基石
- the most important part of something, which the rest depends on（事物）最重要的部分，柱石，基础◆This study is the cornerstone of the whole research program.此项研究是整个研究项目的基础。
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