foundation stone

美 
英 
  • n.基石
  • 网络屋基石;奠基石;基础
复数:foundation stones  
foundation stone
n.
1.
基石,奠基石(重要公共建筑奠基典礼时放置)a large block of stone that is put at the base of an important new public building in a special ceremony
to lay the foundation stone of the new museum
为新建博物馆奠基

例句

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