“奠基石”用英语怎么说？

为了在天堂里建造大厦我把奠基石放在人间.I laid foundation on earth for a mansion in heaven.事实上, 它已成为现代国际贸易理论的奠基石.Indeed, it has come to be the cornerstone of modern thinking on international trade.性格是一切伟大成功的奠基石.Character is the real foundat...