柯林斯詞典cornerstone /?k??n??st??n/ (cornerstones) 1. N-COUNT The cornerstone of something is the basic part of it on which its existence, success, or truth depends. 基石[正式] Research is the cornerstone of the profession. 研究是該職業(yè)的基石。 返回 cornerstone劍橋詞典a stone in a corner of a building , especially one with the date when the building was made or other writing on it 基石；（尤指）奠基石 something of great importance that everything else depends on 基礎，根本 In most countries , the family unit is still the cornerstone of society . 在大多數(shù)國家，家庭仍然是社會的基礎單位。 返回 cornerstone