动词
中文翻译：预钻孔
同义词：
['preparatory drilling', 'pre-drilling例句：1. The engineers had to preboring the holes before starting the construction.（工程师们必须在开始施工之前先钻好孔。）']
例句：
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1. The engineers had to preboring the holes before starting the construction.
工程师们必须在开始施工之前先钻好孔。
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2. Before we start building, we need to preboring the foundation with a hammer.
在我们开始建造之前，我们需要用锤子预先打基础。
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3. The carpenter was preboring the wood for the new door.
木匠正在为新门预先钻孔。