lay the cornerstone的用法和樣例：
例句
- The mayor laid the cornerstone of the new library.
市長(cháng)為新圖書(shū)館奠基。 - Amid salvos, colored flags, magnesium light and the deafening sound of drums and gongs, dignified guests on the rostrum laid the cornerstone for the Center.
在震天鑼鼓與禮炮聲中，在獵獵彩旗和頻頻閃光燈中，主席臺上貴賓共同為博格華納中國技術(shù)中心鏟土奠基。
