drill rocker

例句：

1. 1. The engineer was the drill operator for the construction project.
   那位工程师是该建设项目的钻机操作员。
2. 2.The drill operator had to be careful when operating the machine.
   钻机操作员在操作机器时必须小心谨慎。
3. 3. The drill operator was responsible for ensuring the safety of all workers on site.
   钻机操作员负责确保现场所有工人的安全。