chisel for working in stone

例句：

1. 1. He used a chisel to carve the stone.
   他用凿子雕刻石头。
2. 2.The sculptor used a chisel tocreate the sculpture.
   雕塑家用凿子创作了这件雕塑。
3. 3. The chisel wassharp enough to cut through the hardest rock.
   凿子的锋利程度足以切割最坚硬的岩石。