grub saw

例句：

1. 1. The old tree had been chopped into many gnarled pieces with a grub saw.
   这棵老树被锯成了许多扭曲的碎片。
2. 2. The carpenter used a grub saw to cut the wood for the shelves.
   木匠用锯子将木材切成书架所需的形状。
3. 3.After the fire, the house was left with only a few gnarled pieces of wood and a grub saw in the corner.
   火灾过后，房子只剩下几块扭曲的木头和角落里的一把锯子。