cornerstone
/'kɔ:nәstәjn/
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📖 中文释义
- n. 奠基石, 基础
🔗 释义中的汉语词
🧩 词形变化
复数 cornerstones
📘 English Definition（英文释义）
- n. a stone in the exterior of a large and important building; usually carved with a date and laid with appropriate ceremonies
- n. a stone at the outer corner of two intersecting masonry walls