prebore

例句：

1. 1. The engineers have to prebore the hole before installing the pipe.
   工程师们必须在安装管道之前预先钻孔。
2. 2.Before starting construction, we need to prebore the foundation for the new building.
   在开始建设之前，我们需要为新建筑的地基预先钻孔。
3. 3. The drilling company has been preboring the oil well for several days now.
   钻井公司已经连续几天对油井进行预先钻孔了。