untreated timber pile

例句：

1. 1.The construction site was cluttered with untreated timber piles.
   施工现场到处都是未经处理的木材堆。
2. 2.The builders were using untreated timber piles to build the house.
   建筑工人正在使用未经处理的木材堆来建造房子。
3. 3. The company had a large stockpile of untreated timber piles for sale.
   该公司有大量的未经处理的木材堆待售。