noun🔗Share拱石，拱形砖。 One of a series of wedge-shaped bricks or stones forming an arch or vault."The ancient Roman bridge was built with carefully shaped voussoirs that interlocked to form its strong, curved arches. "这座古罗马桥梁是用精心塑形的拱石 (gǒngshí) 建造的，这些拱石互相交错，形成了坚固弯曲的拱形结构。architecturebuildingmaterialChat with AIVocabulary GamePractice Reading
