eusynchite

例句：

1. 1. The eusynchite in the rock is a fascinating mineral that has been used for centuries.
   岩石中的同步石是一种令人着迷的矿物，已经被使用了几个世纪。
2. 2.The eusynchite was found in the same place where the ancient civilizations once thrived.
   同步石在古代文明曾经繁荣的地方被发现。
3. 3. The eusynchite is a valuable resource for geologists who study the Earth's crust.
   对于研究地球地壳的地质学家来说，同步石是一个宝贵的资源。