untimbered rill stoping

例句：

1. 1. The forest was completely untimbered before the fire.
   火灾发生前森林完全未被砍伐。
2. 2. The ancient ruins are still untimbered, revealing secrets of a bygone era.
   古老的废墟仍然未被砍伐，揭示了一个逝去时代的奥秘。
3. 3. The natural beauty of the area is untimbered, attracting visitors from all over the world.
   该地区的自然美景未被砍伐，吸引了来自世界各地的游客。