drill plough

例句：

1. 1. They drilled holes in the wood to make it stronger.
   他们给木头钻孔使其更坚固。
2. 2. The drill operator needs to be careful when drilling through concrete.
   钻孔操作员在钻穿混凝土时需要小心。
3. 3. The drill bit was too small for the job, so they had to replace it.
   钻头太小，无法完成工作，所以他们不得不更换它。