cornerstone
英 ['k??n?st??n]
美['k?rn?ston]
- n. 基礎；柱石；地基
英英釋意
- 1. the fundamental assumptions from which something is begun or developed or calculated or explained;
- "the whole argument rested on a basis of conjecture"
- 2. a stone in the exterior of a large and important building; usually carved with a date and laid with appropriate ceremonies
- 3. a stone at the outer corner of two intersecting masonry walls