tree pointer

例句：

1. 1. The tree pointed towards the sky.
   这棵树指向天空。
2. 2.He used a tree pointer to mark his path.
   他使用树桩来标记他的路径。
3. 3.The tree pointer helped us find our way back to the car.
   树桩帮助我们找到了回车的路。