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
Don't be lazy, the older you get, the harder it will be to learn.
别偷懒，年纪越大，学起来就越难。
We can't afford the expense.
我们不能付出那些花销。
But he has not promised to give you any of his blood.
但是他并没有答应给你他身上的任何一滴血。