Pre-drill
预钻孔
🧩 词语组成解析
abbr. 炼油工程师（Petroleum Refining Engineer）
drill
[drɪl]
n. 操练;钻头;军事训练;（应对紧急情况的）演习;
vt.& vi. 钻（孔）;打（眼）;操练;训练;
vt. 作…演习，操练;
🗣️ 情景例句
The instructions were not easily understandable.
这份说明书不容易理解。
We are sure both of us have a brighter future.
我们相信双方都有一个光明的前景。
rgtdr
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