打井的英文：
to dig a well
- The farmers drove wells to water the crops.
农民打井灌溉庄稼。
v. 掘；凿；挖；挖掘；掘得；发掘
n. 刺，戳，碰；挖苦
- They are digging at physics.
他们在钻研物理学。 - What are they digging for?
他们正在探究什么? - To dig or hollow out.
挖洞，挖空 - The detectives are digging into this whole business.
侦探们正在彻底地调查这整件事情。 - It is not easy to dig out the past.
发掘过去的历史是不容易的。