steel picks and mattock

例句：

1. 1.He used a steel pick to dig the hole.
   他用钢锹挖了一个洞。
2. 2.The farmer needed a mattock to clear the land.
   农民需要一把锄头来清理土地。
3. 3.The workers used steel picks and mattock to remove the rocks.
   工人们用钢锹和锄头来移走石头。