bondstone

例句：

1. 1. The ancient stone monument is a testament to the city's history.
   这座古老的石碑是这座城市历史的见证。
2. 2. The museum has many precious relics on display.
   博物馆里有许多珍贵的展品展出。
3. 3. The bondstone is said to have been carved by an ancient civilization.
   据说这块石头是由一个古代文明雕刻的。