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
Radio says sunny and mild.
广播说是晴天 温暖适中。
He that runs fastest gets the ring.
捷足先登。
I suddenly felt very worried, but could not say anything.
我突然非常着急起来，但却什么也说不出来。