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
Mary, we're going to miss you.
玛丽，我们会很想你的。
Many new ideas are discovered during college years.
大部分崭新的观念都产生于大学时代。
for the simple reason that I was left with several curiously shaped bits of metal which did not seem to fit anywhere.
原因很简单，因为还剩下几个形状奇特的零件似乎哪里也装不上去。