| 释义 |
keystoneUK:*/ˈkiːstəʊn/US:/ˈkiˌstoʊn/ ,(kē′stōn′)UK-RP:UK-Yorkshire:Irish:Scottish:US Southern:Australian:Jamaican: 主要翻译 keystone n (central stone of arch)拱心石;拱顶石;楔石The impact knocked the keystone loose and the whole arch collapsed. keystone n figurative (foundation) (比喻)基石,基础,要旨The critic discredited the keystone of the author's argument. |