钻井

例句：

1. 1.The engineer drilled a hole in thewall to install the new pipe.
   工程师在墙上钻孔安装新管道。
2. 2. Thedrilling company is responsiblefor extracting oil from theground.
   钻探公司负责从地下提取石油。
3. 3. The drill bit was worn downby the constant pounding of the hammer.
   钻头被不断的敲打磨损了。