pertrified wood

例句：

1. 1. The ancient trees that grow in this region have been pertrified over millions of years.
   这些生长在该地区的古老树木已经石化了数百万年。
2. 2.The petrified wood is a popular tourist attraction.
   石化木材是一个受欢迎的旅游景点。
3. 3.The fossilized wood from the dinosaur era is on display at the museum.
   恐龙时代的化石木材陈列在博物馆里。