| 释义 | 
		 cor·ner·stoneBrE /ˈkɔːnəstəʊn/NAmE /ˈkɔːrnərstoʊn/ noun(especially  NAmE) a stone at the corner of the base of a building, often laid in a special ceremony 基石;奠基石the most important part of sth that the rest depends on 最重要部分;基础;柱石◆This study is the cornerstone of the whole research programme.  此项研究是整个研究计划的基础。 |