Duanxi ink stone

例句：

1. 1. The ancient ink stone is a treasure of our country's cultural heritage.
   古老的端砚是我国文化遗产的瑰宝。
2. 2. The craftsmanship on the ink stone is truly remarkable.
   端砚上的工艺真是令人赞叹。
3. 3. This ink stone has been passed down through generations, preserving the beauty of calligraphy.
   这块端砚代代相传，保存了书法的美。