steinkern

例句：

1. 1.The blacksmith uses a hammer to shape metal.
   铁匠用锤子来塑造金属。
2. 2.The anvil is the main tool for shaping iron.
   大锤是锻造铁的主要工具。
3. 3.The blacksmith's work is essential for building houses and bridges.
   铁匠的工作对于建造房屋和桥梁至关重要。