| 单词 | keystone |
| 释义 | keystoneWord family adjectivekeyedkeylessnounkeyboardkeyboarderkeyboardistkeybuglekeycardkeyholekeyhole surgerykeylinekeynotekeypadkeypalkey ringkey signaturekeystonekeystrokekeystrokingkeywaykeywordkeyworkerkeyverbkeypunch Construction key·stone /ˈkiːstəʊn $ -stoʊn/ noun 1. TBC[countableC] the large central stone in an arch that keeps the other stones in position 拱顶石 2 IMPORTANT[singular] formal the most important part of an idea, belief, or process that influences how it develops 〔观点、信仰、进程等的〕基础，主旨，基石 keystone of The keystone of any personal injury case is medical evidence. 裁定人身伤害案的基础是医学证据。 Examples from the Corpus keystone of• A high level of production has become a keystone of economic security. |
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