fossil bones

• 骨化石

fossil bones的用法和样例：

例句

1. This is the first exhibition of the Prehistoric ele-phant jaw bone fossil discovered in the East of Bulgaria.
   当日，修缮一新的瓦尔纳博物馆第一次展出在保加利亚东部阿克萨科沃发现的史前大象颌骨化石。