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
I continued to teach piano lessons at home.
我继续在家教钢琴。
It's very warm.
天气很暖和啊。
Father Christmas is very kind-hearted.
圣诞老人心肠很好。